Features: 1.It is mainly used for batteries to isolate and fix electrical systems. When the vehicle or boat is not in use, it can eliminate the power consumption of the battery and disconnect the battery safely. 2.Made of solid brass and iron, which makes it rust and corrosion resistant, durable and safe to use. 3.Vertical blade type, easy to install and easy to use. Just lift the knife to cut off the power. 4.Widely used in automobiles, RVs, ships, buses, trucks, tractors, professional racing car, etc. 5.After use this battery disconnect switxh, it can protect the power supply and prevent leakage. Specification: Condition: 100% Brand New Item Type: Battery Disconnect Switch Color: As Pictures Shown Material: Iron+Solid Brass Size: Approx. 78x72x32mm/3.1x2.8x1.3in Hole Dameter: Approx. 9mm/0.4in Rated Voltage: 12V-24V Rated Current: 250A Instantaneous Current: 750A Product Function: Protect the Power Supply and Prevent Leakage Application: Car, Rvs, Ships, Buses, Trucks, Tractors, Professional Racing Car, Etc. PackageList: 1 x Battery Disconnect Switch 1 x Screw 1 x English Manual Note: This product is only suitable for batteries without electrode heads and only screw holes.