Extreme Dog Fence Electric Dog Fence Wire Perimeter Boundary Installation Kit | 1000 Feet 20 Gauge AWG Copper Wire | 100 Flags | 4 Wire Splices In-Ground Electric Dog Fence Perimeter Wire Installation Kit Wire: 1000 Feet of 20 Gauge Copper Wire Training Flags: 100 Perimeter Marker Flags Wire Splices: 4 Professional Grade Wire Splices Fast, free shipping from the Dog Fence Experts!