●Material: zinc alloy + brass plated ●The max electricity flow: 450amp ●Tne volte: 12V ●Cable size: From 25-75 squre millmeter ●Battery pile head diameter: 1.7cm / 0.6in ●Brand new and high quality. ●Quick Battery Disconnector (Cut off Switch). ●Ideal for maintaining the batteries charge over time ●Connects direct to the battery terminal and is cut off by loosening the green wheel. ●Universal fits all 6v,12v and 24v batteries: cars,vans,boat,motorcycle.