(Premier Sheep Supplies) Post every 6.8’ means less sag and a more versatile fence. A prefabricated fence that has 9 horizontal twines (8 conductive), is 35” tall installed, and has large white plastic vertical struts every 12”. White PVC posts are built into the mesh every 6.8’. The result, when energized properly, is a nearly impenetrable mesh to sheep, goats, coyotes, and dogs. The black and white colors provide 24/7 visibility to both humans and animals against light and dark backgrounds. Its low electrical resistance is an important benefit for longer fences and/or fences with high weed contact.