Monofilament Baseline Tactile 1.65 0.008 Grams Of Force Alarms Designed for long term users Undercast Padding Designed for long term users of wheelchairs * Provides comfort for an entire seat or chair with soft comfortable covoluted foam and ties to secure it * Seat size is 18 W x 16 D X 4 H Back Size is 18 16 x 3 * Helps promote good posture while cushioning the body preventing sores and offering a slip free seat no need to take the hearing aid off your ear to operate it❗ Each monofilament represents a unique amount of force and has a fitted protective case enables safe storage and transport 5 lbs UPC: 714905036179