Wheelchair Accessories - 20" x 20" Roho High-Profile Wheelchair Cushion: 20" x 20" Roho High-Profile Wheelchair Cushion Helps Prevent Ischemic Ulcers Designed for patients who suffer from, or are at risk for ischemic ulcers, this therapeutic cushion provides a comfortable, counter pressure environment. High, 4" cells offer maximum therapeutic performance, adjusting to the body's individual contours. The individual air cells allow adequate ventilation, and the durable neoprene material is flame retardant and helps resist urine, oils and medicine. Both cushion and two-way stretch cover are washable. Comes with air pump, repair kit and 24-month warranty. Weight: 3 1/2 lb.