1、HEAVY DUTY DISCONNECT SWITCH: Durable and constructed of good quality brass, the blade type battery disconnect switch is highly conductive and corrosion resistant. Possess safe battery isolation and protection of electrical systems 2、CONVENIENT TO CONTROL: This top rear blade battery disconnect switch has 2 switch positions to control on or off. Lift the lever to power off, lift the lever down to power on 3、SIMPLE, FAST AND EFFECTIVE: When your vehicle is not in use or stored for a long time, just lift the lever to cut off the power, the blade battery off switch will help you to prevent daily battery drain 4、WIDE USES: Battery disconnect switch with battery negative, this top blade battery disconnect switch is widely used in vehicles, trucks, cars, RVs, boats, boats and other electrical equipment 5、EASY TO REPLACE: Knife blade master switch can cut off switch easily, prevent shorts and fires when working on electrical systems, easy to install and replace old one