DuoClick™ Specimen Container, 1 Case of 400 Back Boards Ideal for relief of pain 48750 Ideal for relief of pain and pressure associated with hemorrhoidal surgery Stay Warm and Comfortable when Driving on Cold Days * Heats the back and seat * Instant heat * Multiple settings push button hand control with 3 settings (High Low Heat On Of) * Pressure activated shuts off automatically when not in use * Designed for the car 12 Volt adaptor plugs into your car lighter socket * Durability and Comfort woven fabric and high density foam for comfort and durability * Thin design thin profile design fits all vehicles * Once the specimen is collected Made of 100% virgin grade polypropylene