This durable rubber strip protects your boundary wire as it crosses your driveway or walkway. You can drive over it, walk over it, even mow over it with no damage to the underlying boundary wire. Made of durable elastomer that will last years. Easily installs cross driveways and sidewalks in minutes, this convenient traverse strip eliminates the need to create a wire slit. No sawing or caulking required. Can be used with any brand of electronic fence and all types of boundary wire. Order additional strips for surfaces wider than 16 feet.