Extreme Dog Fence 14 Gauge Wire 250 Ft 250 Foot Continuous Spool - 14 AWG Solid Copper Core Professional Grade Dog Fence Perimeter Wire PE Jacket - the thickest jacket in the industry! Solid Core Prefered by the Pro's Extreme duty - perfect for temperature extremes, above ground installations Direct Burial Underground Rated, Sunlight Resistant Compatible with all brands including PetSafe, Invisible Fence Brand, Dogwatch, SportDOG and PetStop