Item Name: Adjustable Clip Tester Conductive Caps Motorcycle Copper Car Battery Terminals. Battery Terminal Champsfor most car, boat, van batteryInternal diameter:16-18mmMaterial: Aluminum alloyColor: sliverPackage Included:1Pair x Battery Terminal Clamps Note: Please allow 0~1mm error due to manual measurement, Please understand, Thank you!Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you! *Please make