PREMIUM SPEAKER WIRE: 20 feet of 18-gauge color-coded speaker wire. 9-conductor wire, ideal for 4-channel amp to speaker Installations. Professional grade speaker cable designed for custom installations.ULTRA-FLEX OUTER JACKET: Allows for an easy installation and resistance to wear and tear. The ultra-flex frosted PVC jacket protects the wires within and offer maximum flexibility for those installations that require lots of twists and turns.COLOR-CODED: Each of the nine wires is color-coded to match the aftermarket standard for wiring.20 Feet Length is Ideal for 4-Speaker to Amplifier Installation.FULL Specification AWG (American Wire Gauge)SAVE INSTALLATION TIME - Only One Cable to Run.Ultra-Flex Outer Jacket for Maximum Flexibility Product Description 20ft of Premium 18 Gauge Speaker Wire 18AWG 100% OFC 9-Conductor Speaker Cable.Ideal for 4-channel amp to speaker Installations.Professional grade speaker cable designed for custom installations. Perfect for Car Audio Systems Allows for an easy installation and resistance to wear and tear. The ultra-flex frosted PVC jacket.Easily Installs into Most Crimp Terminals Color-coded Speaker Wire Each of the nine wires is color-coded to match the aftermarket standard for wiring.