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