General description Pack of 100 Electric Fence Insulators designed for wooden posts. These high-quality Grooved Electric Fence Insulators are easy to use, simply screw into your wooden fence posts, and allow for the secure placement of PolyWire, Polyrope, or Polytape. They help maintain the integrity of your electrified fencing, preventing sagging that can lead to shorting, and ensuring optimal performance to keep livestock safely contained and protected from predators. Technical specifications Length: 87.5 mm Width: 36.7 mm Depth: 18 mm Hole Diameter: 11.2 mm Slot Width: 3.8 mm Shaft Length: 3.8 mm Weight: 1.6 kg Product Code: SFAGEFST302B Usage When an animal touches the electrified fencing, it delivers a mild shock, which is sufficient to deter most animals from rubbing against it. This electric fencing can also protect specific areas, such as pastures, from damage due to animal movements or grazing.