The SoundBox Mobile SuperFlex E-Series 0 Gauge cable gives any vehicle sound systems the needed connection. With its super flexible wire jacket, this installers choice cable creates ease during installation without compromising quality and connectivity. General Features: SoundBox 0 Gauge Power/Ground Cable UltraFlex Heat Tested Wire Jacket Color: Black Length: 25 Feet Grade A1 Standard Tested CCA (Copper Clad Aluminum)