Great for keeping pets warm on chilly days and soothing pets with sore joints and stiff muscles. Cover comes with a 12V adapter that can be plugged into most vehicle power outlets. Automatically heats to a max temperature of 102 degrees, then shuts off and cools down to 80 degrees before the heat kicks in again. Easy-fit design has attachment straps at each end and seat belt slots for use with a car harness. Includes a six-foot power cord. Each is packaged in a polybag with an insert card.