Zareba Sure Shock Heavy-Duty 1-inch polytape features 8 highly conductive aluminum wires that transmit 20X shocking power to any livestock that comes in contact with this fencing. Each 500-foot strand is woven with with PVC-coated fiberglass and uses lock-stiching along the edges. This manufacturing process essentially doubles its tensile strength， making it capable of withstanding up to 675 lb of pressure. Sure Shock polytape is bright white and highly visible， which makes it ideal for equine fencing. Sure Shock Heavy-Duty polytape is ideal for a variety of other animals， including cattle， pigs and exotics. Zareba backs this polytape with a 5-year limited warranty， and warranty details can be found on the Sure Shock reel packaging.Specifications:•Features 8 highly conductive aluminum wires with 20X shocking power•Woven with PVC-coated fiberglass for 2X strength•Ideal for equine fencing – white poly tape is more visible than traditional electric fence wire•Lock-stitched edges for greater adurability•Weather-resistant UV protection for added life in the field•Tensile strength: 675 lbFeaturesIdeal for equine fencing – white poly tape is more visible than traditional electric fence wireLock-stitched edges for greater durabilityWoven with PVC-coated fiberglass for 2 times the strengthFeatures 8 aluminum wire conductors with weather-resistant UV protection20 times more shocking power than steel-laced polytape500 ft spool of 1-inch heavy-duty polytapeTensile strength: 675 lb