The Synergy Gel Forearm Crutch Handle Covers are made of a solid gel pad with a durable neoprene nylon surface. These large crutch handle covers are soft, easy to clean, and highly efficient at distributing pressure. The Synergy Gel Forearm Crutch Handle Covers have a 1/2 inch solid gel pad that provides excellent cushioning and protection to reduce harmful pressure-related problems. The gel covers have a zipper closure and are designed to attach over the existing foam or rubber hand grips. The durable neoprene nylon surface, soft, easy to clean, and highly efficient at distributing pressure. Forearm crutch users will find the Synergy Gel Forearm Crutch Handle covers provide great hand comfort and skin protection. Synergy Gel ForeArm Crutch Handle Covers Specifications: Fit: Standard forearm crutch handles. Sold as: One pair. Material: Medical grade silicone, solid polymer polyurethane. Care: Do NOT put pads/covers in a washing machine. Do NOT submerge them in water or agitate. Do NOT put in clothes dryer. With HEATED DRYING turned OFF, you may wash them in the top rack of an automatic dishwasher. Alternatively, wipe the surface with any normal household soap or cleaning solution that is not irritating and to which you are not allergic.