A prefabricated fence that has 9 horizontal strands (8 conductive), is 35" tall installed and has large white plastic vertical struts every 12". White PVC posts are built into the mesh every 12.5 ft.
The result, when properly energized, is a nearly impenetrable mesh to sheep, goats, coyotes and dogs. Also used to protect beehives from livestock and bears.
Contrasting white/black color provides 24/7 visibility to both humans and animals against all backgrounds. Its very low electrical resistance (38 ohms per 1000') is important for fences that are either long or will experience high weed contact.