NVX 20 ft. of Metallic Powder Blue EnvyFlex True Spec 4-Gauge Power/Ground Wire Cable [XW4BL20] XW4BL20 Metallic Powder Blue 4-Gauge Power/Ground Wire Cable Made from silver-tinned 100% virgin copper for a pure uninterrupted transfer of power and signal Premium power and ground wire provides optimal power transfer EnvyFlex outer jacket makes installation and routing of the cable easy Length: 20 feet