• Primary wire • Coil of bare copper wire is great for wiring cars, boats, and more • PVC outer jacket resists water, oil, chemicals, and abrasion • 10-gauge black wire with 0174-inch outside diameter, 7-foot length • Copper wire-for low voltage wiring in surface vehicle electrical systems • Black • Coleman Cable 10-1-11 Automotive Copper Wire, 10-Gauge, 7-Foot, Black coil of bare copper wire is great for wiring cars, boats, and more. PVC outer jacket resists water, oil, chemicals, and abrasion. Coleman Cable is an Industry leader in Copper • Wire, offer multiple lengths, thickness, gauge, color. 10-Gauge Black wire with 0.174-Inch Outside Diameter, 7-Foot Length. Copper Wire - for low voltage wiring in surface vehicle electrical systems. Copper wire is commonly known in the automotive • industry as Primary Wire. It is mostly commonly used in electrical systems of cars, boats, and other vehicle electrical systems with 60 DC-Volt (25 AC-Volt) or less. It is also passes SAE standards.