Amps: 400 amps | Brand Name: Road Power | Cable Gauge: 4 Ga. | Cable Length: 0 ft. | Packaging Type: Carded Jumper cable clamps may look extremely simple and basic, but they are a crucial part in order for a jumper cable to work. When they are damaged, a jumper cable is useless or they will reduce the amperage, meaning that you wonà ¢Ã¢â€š ¬Ã¢â€ž ¢t get the desired result. Thatà ¢Ã¢â€š ¬Ã¢â€ž ¢s why it is crucial to replace all your jumper cable clamps if they are low-quality units, damaged or etc. The best jumper cable clamps are those that can withstand the massive voltage, can be used with all car batteries and which can withstand heavy-duty use. | Vinyl coated steel Clamps | Handle length is about 7-inches | Conductors are copper plated steel | For use with 6 and 12-volt batteries | Handle length is about 7"