This is a battery cut-off made of copper and aluminum alloy materials. It has a reasonable design and practical functions. It can help you any power consumption of the battery when you are not using the vehicle or boat, and safely disconnect the battery. The very practical battery cut-off will be your good choice. Features - Color: Assorted color. - Material: Aluminum alloy, copper. - Size: 8.00X8.00X6.00cm/3.14X3.14X2.36 inch. - Rated current: 300A. - Instantaneous current: 1000A. - Choose mild and safe copper and aluminum alloy materials, you can use it with confidence. - Designed to help you avoid meaningless power consumption and disconnect the power supply more safely. - Can be widely used in vehicles, yachts, trucks, etc., very practical. - With a reasonable design, the knob is more convenient to use. - Professional and practical, efficient and , can help you disconnect the battery power. Package list: 1 x terminals 4 x rubber covers