Gardner Bender 14-630 Battery Clamps, 30 AMP, Copper Clad Insulated Battery Clips, Color Coded, 3 Inch., 2 Pk., Red & Black Jacketed Handle For battery, battery charger and testing equipment applications Copper clad clamps Handle grips are insulated and color coded for positive Red and negative Black identification Includes one each of red and black clamps 50 amp