This coil wire is designed to work with an underground pet containment system to help keep your dog within a designated area. The 300m (984ft) length provides sufficient coverage for most yard sizes. Constructed from high-quality metal materials, the wire is durable and resistant to breakage, offering reliable performance in various outdoor conditions. It features a single-strand copper design with a wire diameter of approximately 0.2mm and a total section size of about 0.6mm, weighing around 192g. This wire is compatible with models 023/227/227B electric pet fencing systems. Important usage notes: This wire must be used in conjunction with an electronic transmitter as part of a complete pet containment system. It is not intended for standalone use. For optimal performance, ensure compatibility between the wire and transmitter, especially when using non-domestic versions that may require thicker gauge wire for proper signal transmission. Using a thinner wire than recommended may reduce signal strength, resulting in delayed or weak reception by the pet’s collar, potentially allowing the pet to cross the boundary. When used correctly with the appropriate equipment, the system can effectively alert pets before they reach the perimeter. Package includes: 1 x Electric Dog Fence Wire