Heavy duty, made of copper + ABS, durable for safety use. Rear cover insulates terminals against any short of circuits.Battery disconnect switch can disconnects the battery safely, to eliminate any power draw from the battery when vehicle or boat is not in use.Recommend use for RV, car, vehicle, marine, boat, also electrical equipment’s switch.Easy operation: disconnect and reconnect battery by one simple turn of the knob on it.Package include: 1 x battery switch, 4 x heat shrink tube, 4 x copper wiringProduct Description Material: Copper + ABS Voltage: 12V/24V Product current: 100A Maximum current: 300A Thread diameter: 6MM Function: protect the power supply and prevent leakage Features: The power supply can be cut off quickly in emergency price conditions. Size:Please refer to the detailed picture NOTE: 1.Please check the picture and size carefully before purchase! 2.Please make sure the vehicle is powered off when installing. Package includes: 1 x battery switch, 4 x heat shrink t