Material: zinc alloy + brass plated;Battery pile head diameter:6mm / 0.23in; Size: 2.48 * 0.78 * 0.9* inch Made of galvanized zinc alloy, good conductivity, stable performance, long service life Applicable to 6V/12V Motorcycle battery. To make sure it disconnect the battery well,please rotate knob for some circle. Prevents leakage when you park a vehicle for a long period of time to solve problems, electrical leaks and power outages, also as theft protection L-shape Auto Electricity switch with quick release, disconnect and reconnect the battery by simply turning the knob Product information: Color: blue Material:: zinc alloy + brass plated Battery pile head diameter:6mm / 0.23in Size:approx. 6.3 * 2* 2.3cm / 2.48 * 0.78 * 0.9*in Weight: 36g / 1.26 oz Satisfaction Guaranteed and Easy Refunds If for whatever reason you decide you are not satisfied. You can easily and quickly contact our helpful customer support and get an easy refund.