Includes (3) 4 feet 4 AWG gauge 100% copper snakeskin braided sleeving power cable (6) 4 AWG gauge copper ring terminals with black heat shrink sealing tubes Cable Length: 4ft Big 3 kit includes heavy duty oxygen copper cables that replaces your vehicles battery ground to chassis wire, the chassis to engine black wire, and the alternator charge output wire. If your aftermarket audio system is putting a strain on the rest of your cars electronic, you might want to upgrade your factory wiring. This big 3 electrical upgrade package will boost your electrical systems performance by allowing the maximum current to flow easily from your alternator, greatly improving the systems ground connection to your vehicles chassis.