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, silver vein frame color, 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: 20″W x 16″D Back Height: 16″ Fixed Black Upholstery Product Weight: 37 lb Weight Capacity: 250 lb