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'' Size(L*W): Approx. 55*35mm/2.17*1.38 Inch Material: Copper Package Includes: 1 Piece Positive Battery Clamp 1 Piece Negative Battery Clamp