1Fitment: Battery disconnect switch is used for top post terminal, 15 to 17 mm battery Negative post only, Dc 12V to 24V system, 250A continuous and 750A momentary at Dc 12V, on off 2 position. 2Protection and Power Consumption Saving: Battery cut off switch is used to isolate and protect electrical systems, eliminating any power consumption of the battery when not in use in vehicles or boats, preventing unnecessary battery drain. 3Premium Material: The battery off switch is made of copper, which has good conductivity, not only shinny, but also rust resistant and has a long service life. 4Easy to Use: The power cut off switch with vertical blade design is simple to operate, just lift the knife and cut off power. Switch can be used when the vehicle is about to stop for a long time. 5Wide Applicability: Battery quick disconnect switch can be applied to most vehicles, such as cars, ships, trucks, RVs, ATVs, etc., and can also be used for batteries of other electrical equipment, providing you with a lot of convenience.