Coleman Cable 08766 Heavy-Duty Truck and Auto Battery Booster Cables with Parrot Jaw Clamps, 4-Gauge, 16-Foot Engineered specifically for the needs of the professional mechanic Features 500-amp rated parrot-jaw clamps Parrot jaw clamps are rugged steel with copper-clad jaws and non-slip vinyl-coated grips Tangle-free operation Made in america