Invisible Dog Fence Wire 18 Gauge 500 FEET BLACK In-Ground Fence Burial Boundary 18 Gauge, 500' FT, Single Conductor, Remote, Turn on, Hook Up Wire. Stranded Copper Clad Aluminum. Excellent for any 6 VOLT - 80 VOLT application. Flexible, Insulated, and Jacketed in PVC. Perfect for Car Audio, Home Theatre, Automotive. Color: Black THIS IS NOT AWG AMERICAN GAUGE WIRE