Warranty - Used on Negative Battery Cables. One full year of warranty, any questions,welcome to email us,we will respond within 24 hours and give a solution without worrying about any returning issue. Durable Material - Heavy duty fixed die cast handle metal body, to meet the harsh environment. Waterproof design. Product Function - Prevent leakage, protect the power supply, disconnect the power link safely Widely Usage - The Battery Disconnect Switch Widely Used on Autos, Boats, RVs,Cars,Trucks and Engineering Vehicles. Specifications - Material: Metal + Copper. Working voltage: 12V-36V; rated current: 500A, instantaneous current: 5000A. Two 10mm threaded studs with nuts for the negative battery cable. Product Features - The knob switch can be locked on the panel to prevent accidental closing or opening.