Specifications: 1, On/Off 2 positions. 2, Rear cover insulates terminals against any short of circuits. 3, ABS plastic housing, durable made for safety use. 4, Copper terminal studs with nuts and washers. 5, 4 mounting screw holes,2x Copper Ring Terminals,2x Heat Shrink Tubings , 1x hex wrench. 6, 600A continuous at DC 12V, 455A Intermittent at DC 12V, 1250A momentary at DC 12V. 7, Used for DC 12 - 48V systems to isolate and secure the electrical system. 8, Eliminate any power draw from the battery when vehicle or boat is not in use. 9, Disconnects the battery safely. 10, Universal used for Car, Vehicle, RV and Boat. Package included: 1x On/Off battery switch,4 bolts,2x Copper Ring Terminals,2x Heat Shrink Tubings , 1x hex wrench.Compatible: used for DC 12 - 48V systems to isolate and secure the electrical system, can stand alone or be locked together with other switch. Its purpose is to eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely.