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1 I love the Nota Chair. It s very comfortable and great for encouraging proper posture. Other companies make look-alike products, but I wanted Wenger quality instead of inferior substitutes. Jeff Henry, Band Director, Godley High School, Godley, Texas Godley High School, Godley, Texas

2 CHAIRS NEW LOWER PRICE! Symphony Chair Page 16 Classic black styling meets proper posture. Designed for concert halls and top-tier programs. Nota Premier Chair Pages Upholstered, padded comfort and unmatched ergonomic benefits. Nota Standard Chair Pages Our newest posture chair innovation. No other chair can match it. Musician Chair Page 14 Posture chair design with extra padding for extra comfort. Student Chair Page 15 The original posture chair can be found just about everywhere. Promotes proper posture and breathing. Cellist Chair Page 17 Specifically designed for cellists, with posture, stability and comfort in mind. String Bassist/ Percussionist Chair Page 17 Conductor s Chair Page 31 Provides elevation to give the musician more control and the conductor more visibility from a seated position. Playright Chair Page 18 Designed for beginning and younger musicians. Ensemble Stool Page 18 Always in demand, the Ensemble Stool features telescoping legs and a sealed natural wood seat. Sousaphone Chair Page 19 The original Wenger innovation! 65 years of allowing musicians to concentrate on technique. Chair Move and Store Cart Pages 15, 19 Roll your Music Posture Chairs wherever you need them, or store them safely away when you re done with them. Workstation Chairs Page 38 Lightweight, adjustable and comfortable chairs that complement our electronic workstations for classrooms. Portable Audience Chairs Pages 124 A flexible alternative to fixed audience seating. Available in many widths and colors. High-Density Portable Audience Chair by Clarin Page 125 Portable audience seating that s easy to fold and store. Fixed Audience Seating Pages Attractive seating that offers superior comfort and quiet operation for theatre installations.

3 10 CHAIRS Posture Chair Comparison Chart Better posture produces better playing. Wenger Music Posture Chairs are designed to put students and musicians in the best possible position to promote easier breathing and a more natural range of motion, while decreasing fatigue and discomfort. Wenger Music Posture Chairs solve the four main problems of standard chairs. The four main problems with standard chairs: 1. When you sit back in standard chairs, the spine is forced out of its natural supportive position. 2. It s easy to slouch in a standard chair which forces the body down, lowering the rib cage and constricting the diaphragm. 3. Discomfort and lack of support makes you fidget and move to the edge of the seat, which on poorly designed chairs creates even less support. 4. This cycle quickly brings on fatigue and makes it difficult to focus on technique or performance. Wenger chairs are durable, they look good and they support proper posture. Rick Ghinelli, Performing & Visual Arts Director, Spring Independent School District, Houston, Texas TRANSPORT & STORAGE PRICE Environmentally responsible 100% Recyclable Symphony PAGE NO The ultimate extension of our music posture chair designed to meet the physical demands of professional musicians. REHEARSAL LENGTH Up to 8 hours Up to 6 hours FEATURES MATERIAL COLORS (SEAT/BACK) COLORS (FRAME) ACCESSORIES WEIGHT Adjustable Seat angle control of 1 /4 inch Music posture design with a thigh to backrest angle of 97 degrees allowing musicians to sit in a posture equivalent to standing Contoured seat and back foam for ultimate comfort and support Frame is 14-gauge oval steel tubing Seat is blow-molded polypropylene with molded foam pad Seat and back are covered with high-quality breathable fabric upholstery HEIGHTS 18 1 /2" or 19 1 /2" (47 or 49.5 cm) Adjustable lumbar pad Ganging Clamp Dust Cover 21 lbs (9.5 kg) Move & Store Cart holds 6 chairs. See page 16 Nota Premier The new standard in Music Posture Design incorporating correct posture principles and key ergonomic issues. Padded for extended rehearsals. High-quality padding for support and comfort Patented design provides two seating zones: Engaged and Perched Each zone enhances performance by promoting a naturally balanced posture Narrow convex back Durable floor glides make arranging chairs easy 14-gauge 7 /8" (2.2 cm) welded round tube frame Seat and back are rugged polypropylene with polyfoam cushioning Seat and back are covered with breathable high-quality fabric, Plum, Red, Green, Grey, Blue upholstery, Grey, Chrome 17 1 /2", 19" or 20 1 /2" (44.5, 48 or 52 cm) Universal Folding Tablet Arm Book & Music Storage Rack Tuba Rest Sousaphone Holder Dust Cover Ganging clamp 12 lbs (5.4 kg) Move & Store Cart holds 12 chairs. See page qty. $409ea qty. $201ea.

4 CHAIRS 11 Nota Standard Musician Student Playright The new standard in Music Posture Design incorporating correct posture principles and key ergonomic issues for optimal comfort, flexibility and body support. The original Music Posture Chair design to help support correct posture. Padded and upholstered for extended rehearsals. The original Music Posture Chair design to help support correct posture and reduce discomfort so students can focus on technique. Designed for young musicians to help develop good posture habits early. 1-4 hours Up to 6 hours 1-2 hours 1-2 hours Patented design provides two seating zones: Engaged and Perched Each zone enhances performance by promoting a naturally balanced posture Narrow convex back provides lumbar support Durable, specially designed floor glides provide stability and ease of movement when arranging chairs High-quality padding for support and comfort Music Posture Design allows the musician to sit in a posture equivalent to standing, thus freeing the diaphragm Durable, specially designed floor glides provide stability and ease of movement when arranging chairs Music Posture Design allows the musician to sit in a posture equivalent to standing, thus freeing the diaphragm Durable, specially designed floor glides provide stability and ease of movement when arranging chairs Music Posture Design allows the musician to sit in a posture equivalent to standing, thus freeing the diaphragm Leg glides are ball-shaped black nylon 14-gauge 7 /8" (2.2 cm) welded round tube frame Seat and back are durable polypropylene 16-gauge 7 /8" (2.2 cm) square tube frame and 14-gauge 7 /8" (2.2 cm) square tubular rear crossmember Seat and back are durable polypropylene with polyfoam cushioning Seat and back are covered with high-quality, breathable fabric 16-gauge 7 /8" (2.2 cm) square tube frame and 14-gauge 7 /8" (2.2 cm) square tubular rear crossmember Seat and back are durable polypropylene 16-gauge 7 /8" (2.2 cm) round tubular steel frame and 14- gauge 3 /4" (2 cm) steel back upright Seat and back are contoured blow-molded polyethylene, Plum, Red, Green, Blue, Plum, Red, Green, Blue, Grey upholstery, Grey, Chrome, Chrome, Chrome Chrome 17 1 /2", 19" or 20 1 /2" (44.5, 48 or 52 cm) 15 1 /2", 16", 17", 17 1 /2", 18 1 /2" or 19 1 /2" (39, 41, 43, 44, 47 or 49.5 cm) 15 1 /2", 16", 17", 17 1 /2", 18 1 /2" or 19 1 /2" (39, 41, 43, 44, 47 or 49.5 cm) 16" or 18" (41 or 46 cm) Universal Folding Tablet Arm Book & Music Storage Rack Tuba Rest Sousaphone Holder Dust Cover Ganging clamp Folding Tablet Arm Book & Music Storage Rack Tuba Rest Sousaphone Holder Dust Cover Ganging clamp Folding Tablet Arm Book & Music Storage Rack Tuba Rest Sousaphone Holder Dust Cover Ganging clamp Folding Tablet Arm (right-hand only) 11 lbs (5 kg) 15 lbs (6.8 kg) 14 lbs (6.3 kg) 11 lbs (5 kg) Move & Store Cart holds 18 chairs. See page 13 Move & Store Cart holds 10 chairs. See page 19 Move & Store Cart holds 18 chairs. See page 19 Move & Store Cart holds 10 chairs. See page qty. $88ea qty. $196ea qty. $58ea. (black frame only) qty. $78ea.

5 12 CHAIRS Nota Premier Chair There is absolutely no way you can slouch in the Nota chair it s not possible. Having the Nota chair is a big advantage because developing correct posture and correct tone are interrelated. Craig S. Collins, Principal, Harrison School of the Arts, Lakeland, Florida Nota Standard Chair Nota s narrow convex back helps open the rib cage for better diaphragmatic breathing. Nota Premier Chair High-quality padding and upholstery provides additional comfort. The revolutionary design promotes easier breathing and freedom of movement. The unmatched quality construction guarantees a long life that delivers an unequaled return on your investment. All music environments, including practice and rehearsal rooms, and performance areas Narrow convex back provides lumbar support while still allowing for freedom and range of movement Rounded waterfall front allows one height of chair to accommodate a wider range of body sizes Padded and upholstered for added comfort Powder coat paint finish for maximum durability. Chrome also available Durable, specially designed floor glides provide stability when seated and ease of movement when arranging chairs 14-gauge steel frame for extreme durability STORAGE Matching Move & Store Cart (see following page) DUAL SEATING ZONES The Engaged Position (back) The Perched Position (forward) No matter which position you or the conductor prefer, the Nota music posture chair is designed to keep your posture in the best possible place for performance and comfort. Nota Standard Chair No other chair can match the comfort, support and seating flexibility. Every detail has been carefully crafted to meet the exacting needs of the musician. The design is based on years of customer research and consultation with medical experts. All music environments, including practice and rehearsal rooms, and performance areas Narrow convex back provides lumbar support while still allowing for freedom and range of movement Rounded waterfall front allows one height of chair to accommodate a wider range of body sizes Wear-resistant polypropylene seat and back promote even weight distribution, greater comfort and a lasting appearance Powder coat paint finish for maximum durability Chrome also available Durable, specially designed floor glides provide stability when seated and ease of movement when arranging chairs Specially designed stacking bumpers provide maximum stability and protection when chairs are stacked 14-gauge steel frame for extreme durability STORAGE Matching Move & Store Cart (see following page) When ordering Nota Chairs, please specify the following: SIZE: 17 1 /2" (44 cm), 19" (48 cm), or 20 1 /2" (52 cm) seat-to-floor frame height. FRAME FINISH:, Chrome or Grey. See colors below. SEAT/BACK: Choose from colors below. Samples are available upon request Nota Premier Chair, 12 lbs (5.4 kg) qty. $201ea. When ordering Nota Chairs, please specify the following: SIZE: 17 1 /2" (44 cm), 19" (48 cm), or 20 1 /2" (52 cm) seat-to-floor frame height. FRAME FINISH:, Chrome or Grey. See colors below. SEAT/BACK: Choose from colors below. Samples are available upon request. Plum Red Green Grey Blue Nota Chair frame finishes Nota Standard Chair, 11 lbs (5 kg) qty. $88ea. Plum Red Green Blue PREMIER Chrome Grey STANDARD

6 CHAIRS 13 Nota Chair Accessories Chair Move & Store Cart Rolls easily down hallways, around corners and through standard doorways to move chairs between rehearsal and performance areas. Stores up to 18 Nota Standard or 12 Nota Premier chairs. See page 19 for more information. NOTA MUSIC POSTURE CHAIRS 127A261 Move and Store Cart, 30 lbs (13.6 kg)...$ D500 Dust Cover...$89 Nota Accessories Nota is not just innovative, it s versatile. From sousaphone and tuba holder attachments to folding tablet arms and sleek book racks; these accessories make Nota an all-around great chair. Assembly is required for all accessories. 190A184 Nota Chair Sousaphone Holder 11 lbs (5 kg)...$ A187 Nota Chair Tuba Rest 3 lbs (1.4 kg)...$ Nota Chair Universal Folding Tablet Arm 5 lbs (3 kg)...$78 190A066 Nota Chair Book & Music Storage Rack 2 lbs (1 kg)...$47 190A059 Nota Chair Ganging Clamps...$15/set of 2 Note: Accessories prohibit chair stacking. Nota chairs sold separately. Assembly required on tablet arms. Desk folds completely out of the way when not in use. Tablet Arms are 11-1/2"(29 cm) x 14" (36 cm) New Ganging Clamps make connecting Nota chairs a snap. Florida Youth Symphony Orchestra, Universal Orlando, Orlando, Florida Universal Tablet Arms work left or right Companion Product: Bravo Music Stand pages R E S O U R C E S Literature available: (call or download from the web) Brochure, Product Sheets and Tech Sheets Choice of color laminate tablets. Edging is black. Pebble Graphite Cherry Evening Tigris Fusion Maple Solar Oak Web link:

7 14 CHAIRS M U S I C P O S T U R E C H A I R S Musician Chair Extra padding keeps musicians comfortable during long sessions. High-quality fabrics deliver an enhanced appearance that will last. Timber Creek High School, Keller, Texas R E S O U R C E S Companion Product: Music Stands pages Literature available: (call or download from the web) Product Sheets and Tech Sheets Professional or higher-education environments that require extended practice and performance sessions Wenger s Posture Chair design promotes easier breathing Padded and upholstered for added comfort Generously sized seat and back for proper support Six heights available to accommodate most musicians Chair glides provide increased durability and stability Accepts folding tablet arm, storage rack, sousaphone holder, tuba rest 16-gauge, square-tube framing and 14-gauge rear crossmember for increased durability Powder coat paint finish for maximum durability. Chrome also available Long-lasting, high-quality fabrics Attractive selection of upholstery and frame finishes 2" (5 cm) contoured seat cushion for extra comfort STORAGE Move & Store Cart on next page Stackable design When ordering Musician Chairs, please specify the following: SIZE: 15 1 /2" (39 cm), 16" (41 cm), 17" (43 cm), 17 1 /2" (44 cm), 18 1 /2" (47 cm), or 19 1 /2" (49.5 cm) seat-to-floor frame height. FRAME FINISH: or chrome. See colors at right. SEAT/BACK: Choose from colors shown below. Color samples are available upon request Musician Chair, 15 lbs, 10 oz. (7.1 kg) qty. $196ea. Musician Chair frame finishes Chrome Web link: Green Blue Plum Red Grey

8 CHAIRS 15 Student Chair Our original Posture Chair s unique design provides flexible support for increased comfort and promotes a more natural performance. All music environments, including practice and rehearsal rooms, and performance areas Wenger s Posture Chair design promotes easier breathing Generously sized seat and back for proper support Six heights available to accommodate most musicians Chair glides provide increased durability and stability Accepts folding tablet arm, storage rack, sousaphone holder, tuba rest shown at right 16-gauge, square-tube framing and 14-gauge rear crossmember for increased durability Powder coat paint finish for maximum durability. Chrome also available Wear-resistant polypropylene seat and back for even weight distribution, more comfort, and a great look for years to come STORAGE Move & Store Cart shown at right Stackable design When ordering Student Chairs, please specify the following: SIZE: 15 1 /2" (39 cm), 16" (41 cm), 17" (43 cm), 17 1 /2" (44 cm), 18 1 /2" (47 cm), or 19 1 /2" (49.5 cm) seat-to-floor frame height. FRAME FINISH: or chrome. See colors at right Student Chair, 14 lbs (6.4 kg) 1-49 qty. (black frame)...$ qty. (black frame)...$ qty. (black frame)...$ qty. (black frame)...$ qty. (chrome frame)...$78 NEW LOWER PRICE! The Student Chair makes it virtually impossible to have bad posture. As a singer and teacher, that is helpful. These chairs make it very easy to sit correctly and comfortably with good singing posture. Jamie Abrams, Choir Director Andy Dekaney High School, Houston, Texas Student Chair frame finishes Chrome Chair Move & Store Cart Easy to use and saves setup time Model for Nota, Student, Musician, Cellist and Playright Chairs shown here. Model for Symphony Chair shown on page 16 Holds 18 Nota Standard or 12 Premier Chairs, 18 Student, 10 Musician, 10 Playright, or 10 Cellist Chairs Durable steel construction with easy-roll casters Assembly required 127A261 Move & Store Cart 30 lbs (13.6 kg)...$ D500 Dust Cover...$89 190A059 Ganging Clamps...$15/set of 2 Folding Tablet Arm Ready-made writing desk Folds behind chair when not in use Left- and Right-hand versions for Student and Musician Chairs Available in Pebble/Chrome finish only May be added anytime (assembly required) Note: Prohibits chair stacking Right-Hand Folding Tablet Arm Only 8 lbs, 8 oz. (3.9 kg)...$ Left-Hand Folding Tablet Arm Only 8 lbs, 8 oz. (3.9 kg)...$68 Prices do not include chair. Book & Music Storage Racks Available in side-mount or under-chair styles Durable wire rack, chrome finish Fits Student and Musician Chairs May be added at any time Note: Prohibits chair stacking 054A050 Side-Mounted Book Rack 2 lbs (0.9 kg)...$47 054B286 Under-Chair Book Rack 2 lbs (0.9 kg)...$47 Prices do not include chair. Tuba Rest Chair Accessories Adjustable, vinyl-clad support stand Helps student properly position the tuba and focus on technique Height-adjustable Note: Prohibits chair stacking 054A160 Tuba Rest, 3 lbs, 7 oz. (1.6 kg)...$95 Price does not include chair. Sousaphone Holder Adjustable, vinyl-clad support stand Great for storage and prevents damage due to handling Note: Prohibits chair stacking 054B159 Sousaphone Holder Only 11 lbs (5 kg)...$ D001 Student Chair and Sousaphone Holder, 25 lbs (11.3 kg)...$267 NOTE: When ordering the Sousaphone Holder with a Student Chair, a black 17 1 /2" (44 cm) chair with chrome frame will be sent unless otherwise specified.

9 16 CHAIRS S P E C I A LT Y C H A I R S Symphony Chair Sophisticated, classic styling meets proper posture. Molded high-density foam seat and back create firm, total body support. Adjustable angle provides two ideal positions for string and wind players. Cork School of Music, Cork, Ireland R E S O U R C E S Companion Product: Music Stands pages Literature available: (call or download from the web) Tech Sheets, Fabric Samples Designed for maximum comfort during long rehearsals and performances Posture Chair design ensures the best possible performing position Generously sized seat and back for proper support Molded, high-density foam seat and back for firm, total body support and comfort 14-gauge, oval-tube framing for increased durability Powder coat paint finish for maximum durability. Chrome also available Premium, durable upholstery and formal, all-black styling Two standard seat-to-floor frame heights: 18 1 /2" (47 cm) and 19 1 /2" (50 cm) Optional adjustable lumbar pad STORAGE Matching Move & Store Cart holds 6 chairs Stackable design with nylon bumpers When ordering Symphony Chairs, please specify the following: SIZE: 18 1 /2" (47 cm) or 19 1 /2" (50 cm) seat-to-floor heights Symphony Chair, 21 lbs (9.5 kg) qty. $409ea Adjustable Lumbar Pad, 1 lbs (0.5 kg)...$62 112A094 Move & Store Cart, 29 lbs (13.2 kg)...$ A093 Ganging Clamps...$10/ea. Web link: Adjustable Lumbar Pad

10 CHAIRS 17 Cellist Chair Cellists require a unique playing position that standard chairs cannot accommodate. Our chair has been specially designed to put cellists in the optimal lean-forward position that successfully stabilizes and comfortably supports this trying posture. String Bassist/ Percussionist Chair Full support for the half-seated position. Continuous comfort and support are essential to a focused performance. But what s more, the chair s adjustable design also gives musicians the flexibility to find their own ideal position. I know that the musicians and students are extremely happy with the Wenger chairs we have the Symphony, Cello and Musician models. As a music school, it s of course very important that our chairs are suitable for musicians. Eamonn Comerford, Facility Manager, Cork School of Music, Cork Institute of Technology, Cork, Ireland Designed to provide comfort throughout even the longest rehearsals Provides the ideal lean and balance requirements of a cellist Powder coat paint finish for maximum durability. Chrome also available Fully cushioned seat and back with nonslip upholstered surface for long-lasting comfort Strong, durable 16-gauge steel framing Standard 18 1 /2" (47 cm) and 19 1 /2" (49.5 cm) seat-to-floor frame heights (custom heights available) STORAGE Matching Move & Store Cart; see page 19 When ordering the Cellist Chair, please specify the following: SIZE: 18 1 /2" (47 cm) or 19 1 /2" (50 cm) seat-to-floor heights SEAT/BACK: See colors below. Color samples available on request. FRAME FINISH: Grey, black, or chrome Cellist Chair, 18 lbs (8.2 kg)...1-9qty. $237ea. The Cellist Chair is specially designed to support the forward lean of a cellist. Cellist Chair frame finishes Grey Chrome Designed for the half-seated, half-standing position used by bassists and percussionists Cushioned seat supports half-seated, half-standing posture Seat swivel locks for bassist use. Swivels 170 degrees for the extended range of percussionists Combined pneumatic seat height and footrest adjustment Low back and small, rounded seat Strong, durable steel framing Standard black frame Choose from the upholstery colors below Some assembly required When ordering the String Bassist/ Percussionist Chair, please specify the following: SEAT/BACK: See colors below. 157D091 String Bassist/Percussionist Chair - 31 lbs (14.1 kg)...$590 Green Blue Plum Red Grey Green Blue Plum Red Grey

11 18 CHAIRS S P E C I A LT Y C H A I R S Playright Chair Beginning musicians risk developing bad posture habits that will be extremely difficult to overcome. The Wenger Playright Chair was designed by music educators for smaller musicians to encourage proper posture and help eliminate the fidget factor. The unique design promotes proper music position: the seat curvature helps eliminate slouching and the rolled-edge seat and back reduce pressurepoints to prevent circulation cut-off. The ideal chair for the beginning musician Posture Chair design Unique seat curvature eliminates slouching and helps musicians maintain proper position Lightweight and easily stackable Rolled-edge seat and back reduce pressure points to prevent circulation cut-off to the legs Two height choices support a range of students When ordering Playright Chairs, please specify the following: SIZE: 16" (41 cm) or 18" (46 cm) seat-to-floor frame height. Shown with Tablet Arm option Wear-resistant polyethylene seat and back promote even weight distribution, greater comfort, and a lasting appearance Strong, durable 16-gauge round steel framing Available in seat and back with Chrome frame Move & Store Cart (see next page) Prosper High School, Prosper, Texas FRAME FINISH: Chrome SEAT/BACK: Playright Chair frame finish Chrome R E S O U R C E S Companion Product: Music Stands pages Literature available: (call or download from the web) Product Sheets and Tech Sheets Playright Chair, 11 lbs 8 oz (5.2 kg) qty. $78ea Playright Chair Tablet Arm (right hand only), 7 lbs (3.2 kg)..$68ea. (chair sold separately) Note: Assembly required on Tablet Arm Ensemble Stool -enamel frame Telescoping legs Sealed natural wood seat Legs adjust from 25" (64 cm) to 33" (84 cm) Web link: 104B001 Ensemble Stool, 11 lbs (5 kg)...$164

12 CHAIRS 19 Chair Move & Store Cart Saves setup time Easy to use Model for Nota, Student, Musician, Cellist and Playright Chairs shown here. Model for Symphony Chair shown on page 16 Holds 18 Nota Standard, 12 Nota Premier, 18 Student, 10 Musician, 10 Playright, or 10 Cellist Chairs Durable steel construction with easy-roll casters Compact, easy to store Assembly required 127A D500 Move & Store Cart 30 lbs (13.6 kg)...$318 Dust Cover...$89 Keep your chairs clean when they are in storage or transport with our dust cover. Other Wenger Chairs in this catalog: Workstation Chair Available with or without arms Available in fabric or poly seat Height adjustable 5-caster base Available in only p.38 Fixed Audience Seating Fixed audience seating from Wenger has been designed with an extremely efficient and quiet lifting mechanism that eliminates noise to maximize quiet throughout the performance. Plus, seats not in use are designed to maintain the acoustics of the space. True to the Wenger tradition, this seating is handcrafted and ergonomically designed to provide superior comfort and an attractive appearance for years and years. Sousaphone Chair Before 1946, playing the sousaphone was a very awkward exercise. Even students with the desire and talent were often too overwhelmed by the instrument s size and cumbersome nature to stick with it. Harry Wenger, a band leader and educator always looking for ways to help his students and fellow musicians, designed a chair that supports the instrument s bulk and lets musicians concentrate on their technique. The Sousaphone Chair hasn t changed much since Harry Wenger s original design. And neither has Wenger s desire to develop the innovations that enhance your musician s abilities. The Wenger Nota and Student Chairs also offer an optional Sousaphone Holder for improved posture; see page 15 Wenger also offers a Sousaphone Wall Bracket for superior storage; see page 59 Assembly required 046D001 Sousaphone Chair 15 lbs (6.8 kg)...$286 Portable Audience Chairs p.125 p.122 A flexible alternative to fixed audience seating that can quickly adapt to your changing needs. These chairs combine all the features you would expect from a luxury theatre chair at a price that s affordable. Comes in Standard or Premier styles, and double and triple configurations. p.124 High-Density Portable Audience Chairs by Clarin This strong, durable folding portable audience seating won t leave marks on gymnasium or auditorium floors. The special X-frame construction prolongs the life of the chair and provides even weight distribution for enhanced comfort. The exclusive Duraflex action assures level seating on uneven surfaces and the chair frame automatically returns to its original shape. Fast, easy setup and take down.