Remote Dog Training Shock Collar & Underground/In-ground Electronic Dog Containment Fence System Combo (Boundary Wire)

Extra spool of boundary wire that you can add to your existing fence system(Easypet EP-8000 fence system, KoolKani KK-9000 system) May work with other brand fence systems(please read specs of this listing). 150M/500 feet 23 gauge wire with solid single core copper wire, covers about 1/3 acre area.