Insulated plastic/metal, power cut off switch, use for 12V DC circuits with maximum continuous a draw of 50A & a maximum surge draw of 300A, has two 1/4" diameter studs with steel zinc plated nuts & solid brass washer for battery cable mounting, equipped with 2 keys, a key operates the switch to be in either the on or off position, key hole is covered with a rubber cover when not in use. Upc: 805089418605 this product is a lawn & garden tool accessories. This product is manufactured in China.