Features: 1.Enclosed Shut Off Switch: This battery disconnect switch eliminates any power draw from the battery when the vehicle or boat is not in use, safely disconnecting the battery. 2.Waterproof Cover: This waterproof power disconnect cut off switch is designed with a waterproof cover on top to better protect the key hole. 3.Premium Material: The housing is made of flame retardant ABS material, which is sturdy, not easy to age and wear, ensuring maximum strength and durability. Wiring post is made of nickel plated purple copper for maximum electrical conductivity. 4.Advantages: Stylish and modern appearance, easy installation and cable connection. Professional manufacturing, high reliability, compact size. 5.Wide Application: Widely used in RV, boat, car, off road vehicle, motorcycle, small boat, camper, travel trailer, truck and other engine applications. Specification: Item Type: Battery Power Off Switch Material: ABS and nickel plated purple copper Switch Positions: 2 (ON OFF) Operating Voltage: 6-32V DC Continuous Rating: 300A Start Instantaneous Current: 400A Number of Wiring Posts: 2 Wiring Post Size: M8 Wiring Post Length: Approx: 13mm/0.51in Application: Suitable for Marine Boat RV, big trucks, modified cars Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.