DRY1000 Features: * Arm protector with the patented watertight vacuum seal * Fits snugly yet comfortably during a shower, bath, and even an active swim * Cannot slip off and leak * Rugged and made of high quality surgical latex * Special non-skid-grid helps prevent slipping * Built in Pro-Pump also acts as a gauge showing that the vacuum is intact and cannot leak Dimensions: * X-Small: 16"" D * Small: 24.5"" D * Medium: 27"" D * Large: 31"" D