This coil wire is designed to work with an underground pet containment system to help keep your dog within a designated area. With a length of 300 meters (984 feet), it provides sufficient coverage for most yard sizes. Constructed from high-quality metal materials, the wire is durable and resistant to breakage, making it suitable for long-term outdoor use. The single-strand copper wire has a diameter of approximately 0.2mm, with a total wire section size of about 0.6mm, and weighs around 192g. It is compatible with models 023, 227, and 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 cannot function alone. - For optimal performance, ensure compatibility between the wire gauge and the transmitter model. Thinner wire may reduce signal strength, which could affect the receiver's ability to detect boundaries, especially with certain foreign transmitter models. - When used with compatible equipment, the system typically provides effective pet containment with a detection range of up to 1 meter (3.3 feet) from the wire. Package Includes: 1 x Electric Dog Fence Wire