USA-Made 2 Gauge 20 Foot Booster Cables with Case These jumper cables are long, excellent for front to back hook-up for freeway safety. These Booster Cables are made of 2-gauge 100 percent copper. Small gauge number means bigger diameter of copper inside meaning more conductor capacity. These Deka 2 Gauge jumper cables have color-coded cables and the clamps are tangle-free. Vinyl coated for corrosion prevention and color coded for your convenience.