These Goodall by Vanair clamp to clamp cables are the heaviest duty set. It is made of1/0 gauge welding cable and we offer both 20′ and 30′ cables for easy access toa disabled vehicle. The clamps feature full-power jaws rated at 1000 ampsallowing increased amperage flow and providing less current resistance. Heaviest duty jumper cables Flexible to -40? F Full-powered jaws Copper wire 1000 Amps
