Features: This switch eliminates any power draw to the battery when the vehicle or boat is not in use, safely disconnecting the battery. The brass has excellent electrical conductivity and is tinned for greater resistance to oxidation and corrosion. The housing is made of sturdy flame retardant nylon, which is drop and high temperature resistant and protects the power supply from leakage. The indication of the switch gear is very clear, turn the knob to achieve the effect of on and off. Suitable for yachts, cars, trucks, RVs, boats, etc. Specifications: Model: A1201 Color: black Material: Nylon + Brass Screw diameter: 10mm Rated current: 300A(12V) Instantaneous current: 1000A(12V) Package size: 11 * 7.1 * 7.1cm Package weight: 270g Package List: 1 * Battery Switch 4 * Set of Mounting Bolts