HOODDEAL 12 Volt 300 Amp Battery Disconnect Cut Off Kill Switch With 2 Keys Helps prevent battery drain when storing repairing cars/trucks. Provides the most effective way to Cut off power on racing cars & prevent fire. Durable brass terminals, nuts & washers Rust & corrosion resistant, Solid brass nuts and washers 1/4" X 3/4" Studs, (2) 3/16" mounting holes,5/16" brass terminals High Capacity: 300 AMPS. 2 Removable keys included