Extra heavy duty polywire, white with a black stripe for maximum all season visibility. Superior strength and conductivity over standard polywire. Advanced twisting technology prevents unraveling. 9 Wire All Season Polywire is made with 3 tightly twisted, 12 strand, groups of .38mm, UV protected polyethylene monofilament, 36 total, and 9 strands of .20mm stainless steel wire. Two of the groups are white and one is black to provide and excellent contrast in either green summer fields or white winter snow. Its strong enough to be used for multi strand hot/ground fence systems.