Ice It! ColdComfort System Large 6 x 18 Instant Hot Packs Stay Warm and Comfortable when Undercast Padding 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 * * All Single Wheel Castes Come With Removable Bolt And Locknut Allowing Disassemlby For Easy Cleaning And Removal Of Build Up Grime Thread Or Anything Else That Your Wheel Picks Up During Normal Usage System includes two (2) 6 x 9 B*Packs in a soft 6 x 18 fabric cover that is divided to hold each cold pack securely *The ColdCOMFORT System Large 6 x 18 *The Large size Ice It