Serta Heated Travel Blanket - Electric Convertible 3-in-1 Warming Traveler DARK GREY 30 x 40 Pillow, blanket and car seat warmer in one - 1 size Includes controller that plugs into power socket/lighter Made of a soft micro-plush fabric - Blanket opens to 30" x 40" Can also be used as a car seat warmer and secured with elastic strap Converts into 10" x 15"pillow with elastic band