Use heavy-duty Sure Shock(TM) electric fence polywire from Zareba(R)to contain your livestock and horses within your interior paddocks. This electric fencing line features three highly conductive aluminum strands that deliver 20x the shocking power to animals that come in contact with it. Each 1, 320-foot length of heavy-duty polywire has been PVC-coated to deliver UV protection to its fiberglass weave. This durable fence tape is 2x stronger than other fence polywire, and Zareba(R) backs it with a 5-year limited warranty. | ZEREBA Sure Shock Polywire 1320'