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. CONTAINS sheep, goats and cattle. Keep out predators such as coyotes, dogs and bears. EASY TO INSTALL—fencing the flock or herd instead of an entire pasture. Even for new users, it takes less than 10 minutes to go from out-of-the-box netting to installed fence. NO GATE NEEDED Just turn off the energizer and pull the first post to create an opening. MUST BE PROPERLY ENERGIZED TO BE EFFECTIVE! Energizer is not included. Warning! Do NOT use continuous output energizers with electric netting. A white prefabricated 164 ft fence that has 9 horizontal twines (8 conductive); is 35 inches tall installed, and has large white plastic vertical struts every 12 inches to reduce fence sag. White PVC posts are built into the mesh every 12.5 ft. PVC posts are .51 inch diameter with a 6" double metal spike at the bottom to insert into the ground. The result, when energized properly, is a nearly impenetrable mesh to sheep, goats, coyotes and dogs. Must perform routine maintenance to minimize grass/weed load, as it will drain the energy from the fence if touching the live strands. It's low electrical resistance (only 38 ohms per 1,000 ft) is an important benefit for longer fences and/or fences with high weed contact. Multiple rolls of netting may be connected together. Acceptable levels of electric conductivity on the fence can be difficult when low soil moisture conditions are present. If dry soil conditions occur frequently, a Pos/Neg (P/N) version of netting fence is strongly advised. FENCE MUST BE PROPERLY ENERGIZED TO BE EFFECTIVE. Energizer is not included. Recommend approximately .25 joule of energizer per roll of fence. Use only low or wide impedance intermittent pulse energizers. Warning! Do NOT use continuous output energizers with electric netting. (Fi-Shock brand energizers which are sold as low impedance, continuous current output should NOT be used with electric nettng.) For optimum results, we recommend using a Premier Solar or AC/DC energizer that fits your specific needs. Premier's energizers are found on Amazon. Recommend using non-conductive support posts at ends corners or major directional changes to maximize fences effectiveness. See Premier 35" FiberTuff support posts (item 208053) also sold on Amazon. We prefer using support posts versus guy-lines at the fence corners, as they do not require removal when mowing and trimming around the fence..