Airgo® Lightweight Wheelchair With Dual axle positions Features High strength powder coated carbon steel frame for durability and low maintenance. Dual axle positions allow for varying seat-to-floor heights. Urethane rear tires and front casters for lighter weight and enhanced performance. Maintenance free dual-sealed precision fork, caster and wheel bearings. Dual armrest-cradle design for both flip-back and easy removal. Heavy duty, cushioned seat and back with anti-sag construction for added comfort and durability. Flame-retardant nylon upholstery resists cracking and UV damage. Seat and back screw inserts for longer life, even after multiple upholstery changes. Frame design accommodates custom backs and seating. Meets RESNA standards for manual wheelchairs in product performance.