Invacare 9000SL WheelchairThe Invacare 9000 SL Wheelchair features dual axle positions for various seat to floor heights for user comfort and "no flex" wheels with urethane rear tires offer superior performance. Dual axle allows users to self propel or be propelled by a caregiver Long lasting, stylish carbon steel frame Urethane casters for a smoother, lightweight ride Heavy duty inner liners keep seat and back from stretching Space saver arms reduce overall frame width for