Features:To keep your hands warm in cold days.Low voltage direct current. No electromagnetic radiation, no induced current.Plug for cigarette lighter. When used, power is taken from the car cigarette lighter. The indicator light is on at work.The product is flexible, foldable, kneaded and washed by hand.Far-infrared composite fiber heater wire:Tensile strength: the tensile strength of single wire is above 600MPa; Rub: rub in the same position for more than 25,000 times without damage; Corrosion resistance: acid and alkali resistance; High heat transfer efficiency: over 99%Suit for most 37-38cm diameter steering wheels while still providing a tight fit.Specification:Type: Heating Steering Wheel CoversMaterial: plushQuantity: 1pcColor: BlackVoltage: DC 12VFit for: 37-38cm outer diameter steering wheelPacking list1* Heating Steering Wheel CoversNote:Due to photo lighting problems, the color of the picture may be slightly different.Due to manual measurement, the size may have an error of 1-2cm.