Rhi battery terminal clamps Material : copper , brass, .Copper plated , zinc alloy .Aluminum alloy . , lead .Lead alloy .Steel etc. Usage: for heavy duty , the traffic tools such as autos , , bus , , e-bikes , motor trucks, trains, cars, trains, motorcycles, electric vehicles, storage battery etc. Additional :oem/odm are valid Surface color : gold , silvery white , tin plated , coated , brass plated , nickel plated Negative pole and positive pole. We also offer battery clamp covers, battery caps for battery terminal clamps.