For DC 12 V systems, brass On/Off switch with cover, rated current: 125 A.
Used to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely.
Brass made fit for top post 15-17 mm cone and tapering battery NEGATIVE post.
Easy to install and use, loose - twist of the knob to cut the power.
For car and boat battery that have a standard 15-17 mm cone top post terminal, also as electrical equipment's switch.