Use this electric blanket to protect engines and batteries from freezing in cold winter weather. Patented heat-spreading technology keeps fluids warm, hoses and pipes safe, and machinery tubing from cranking or breaking. U.S.A. Volts: 120, Watts: 90, Amps: .75, Heat Settings: Heats up to 120 F, Dimensions L x W (ft.): 2 x 2 Rugged vinyl outer shell No assembly required