Description: Universal Car Truck Battery Terminal clamp 1set ( Positive 1pcs + Negative 1pcs) Copper construction provides good corrosion resistance and durability. Hole Diameter: Approx. Positive--19mm/0.75'' , Negative--17mm/0.67'' Fit Wire Diameter: Approx. 25mm/0.98'' Screw Diameter: Approx. 10mm(3/8'') Specification: Size(L*W): Approx. 60*35mm/2.36*1.38 Inch Material: Copper Package Includes: 1 Piece Positive Battery Clamp 1 Piece Negative Battery Clamp Note: Please allow 1-3mm error due to manual measurement, thanks for understand !