DuoClick™ Specimen Container, 1 Case of 400 Back Boards Stay Warm and Comfortable when MSHQ BH190XL 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 * (6) 4 H x 36 W steps on the other end * 36 x 36 x 24 high platform * Requires 9 ft Once the specimen is collected a simple turn of the closure will give the user assurance that the seal is fully engaged with an audible click