This zinc alloy car battery switch is a quick cut-off disconnect protector that serves as a battery isolator for cars, motorcycles, trucks, and boats. It features superior material, versatile application, quick battery disconnect, enhanced safety, and extends battery life. The switch is suitable for 6V, 12V, and 24V batteries and has a size of about 8.7*3.6*3.3cm/3.43*1.42*1.30 inch. It weighs about 120g and comes in green and black colors.