Our eXtreme Dog Fence brand dog fence wire was specifically designed to prevent costly wire breaks in the perimeter wire of your electric dog fence system. This is a heavy-duty 14 gauge wire with a thick 45 mil polyethylene jacket to further protect against wire breaks. This wire may be a little more costly upfront, but will provide for many, many years of trouble free operation of your fence system, easily paying for itself in the long run. This wire is compatible with all brands of dog fence systems, including all PetSafe in-ground electric fence systems.