Features: L Shape Auto Electricity Switch. Used in the case that the compartment room is not enough for normal top post switch and need to L turn to fit in. Simple twist of a knob provides a convenient way to quickly disconnect and reconnect power from an automotive battery. Eliminate battery drain if you're storing a vehicle for an extended period of time. 17mm Pile Head Diameter High Quality, gold-plated, long duration time of use Specifications: Material: Zinc Alloy+Brass Plated Color: Black Base Diameter: 34mm/1.34 Knob Bolt Pile Diameter: 17mm/0.67 Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you No Retail Package Package Includes: 1 x Cut off Switch