1. Material: ABS, copper 2. Voltage: 12V/24V 3. Rated current: 200A 4. Current (max): 500A 5. Bolt: 8MM 6. Function: protect the power supply and prevent leakage, the studs are not divided into positive and negative 7. Scope of application: cars, trucks, vans, yachts, SUVs, caravans, etc. 8. Features: sturdy and durable, anti-rust and anti-corrosion, simple operation and convenient installation. 9. Brass has good electrical conductivity and is equipped with a dust cover to prevent the infiltration of dust and rainwater, which can well protect the service life of the product. 10. How to use: When the key is pulled out, the power is off. Insert the key, press the key down and turn it clockwise to turn on the power.