Premium Booster Cable 16 FT 6 Gauge 6GA Heavy Duty Extra Power Battery Jumper Heavy Duty Stranded Copper Clad Aluminum Jumper Cables Six (6) gauge cable, constructed of stranded copper clad aluminum wire for strength, flexibility, and kink and break resistance Sixteen (16) foot extended length for easy side by side use Fully shielded clamps with high tension springs, with copper clad aluminum plated serrated jaws for improved conductivity, and red and black color coding. Dual extruded insulated cables provide tangle free use. Works with top and side battery post terminals