Description: 【Quick Heating】: This car heater warms up quickly after the vehicle starts, providing warmth for your hands and feet. It is lightweight and convenient to use 【Multifunctional】: Suitable for winter use, this Defrost Defogger can defrost and defog windshields, as well as heat up the car to resist harsh cold weather 【Constant Temperature Heating】: The Windshield Defroster uses a new PTC ceramic heating that automatically maintains constant temperature and pressure. It has a long lifespan, does not , and is safe to use 【Safe Design】: Equipped with switch overload protection and insulation protection to ensure safe during use. The thick flame retardant copper wires stably supply power to the heater continuously, preventing any short circuit in the car 【Versatile Installation】: This Car Heater and Defroster can be used for heating batteries in cars, RVs, and other types of vehicles. Please consider the load capacity of your generator and battery before purchase Specification: Material: Metal Size Chart: 18cmx12cmx10cm/7.09inchx4.72inchx3.94inch Package Includes: 1 Car Heater 2 Battery Clip 2 Hose clamp 2 Aluminum foil tube 1 Red and black wire Note: Please allow slightly errors 1-2cm differences due to manual measurement.