The Cushion-it: Medical Sheepskin Wheelchair Pad is a wheelchair seat cover designed for use by individuals at risk for pressure sores/ulcers. Machine washable and urine resistant, this Australian Medical Sheepskin pad can also beused as a back pad and reduces pressure and absorbs perspiration. The HiTemp UR Australian Medical Sheepskin Pads are held securely in place by straps with Velcro adjustment and closure. The leather of these sheepskins is perforated by an array of small holes to facilitate air circulation. The patented AirTec system promotes air circulation so that the users' skin can breathe and remain dry. DIMENSIONS: 18 x 22 inches.