The back side of these switches are completely sealed and weatherproofed with a tough, waterproof polymer coating. Keeps out dirt, dust and moisture that can turn a critical switch into a useless dead end connection, possibly putting you out of a race.Manual battery disconnect switch with a bright red handleEasier to find in an emergencyPrevents battery drain175 amp continuous rating, 6-36 volt, 1000 peak May require drilling a 3/4" hole(switch only - panel not included)