A true dual-axle position allows for repositioning the 24" rear wheels and 8" casters for adult or hemi seat-to-floor-height.14-gauge cross braces add strength and durability.Durable, low maintenance, triple chrome-plated, carbon steel frame is long lasting.Urethane rear tires mounted on "no flex" wheels offer superior performance.5-year warranty on frame and crossbraces.Front riggings sold separately.Spcifications: seat dimensions: 18"w x 16"d back height: 16" fixed midnight blue upholstery product weight: 36 lb weight capacity: 250 lb