Easy to install. Solid brass is rust-proof, weather-resistant, durable and safe to use. Battery disconnect switch is widely used for ATVs, trailers, off-road vehicles, RVs, trucks, heavy-duty vehicles and electrical equipment switches. High temperature resistant and not afraid of falling, durable, protecting the power supply and preventing leakage. The sturdy metal housing has strong weather resistance and protects the internal components of the switch for use in the harshest conditions. This battery disconnect switch can cut off the power supply to the electrical system, to help prevent battery drain, safe and effective way, when car, boat or RV is not in use, safely disconnects the battery. Note: The data are all measured manually, please allow 1-3cm error due to different light and display, there may be some color differences, please understand refer to the actual item received.