Gallagher's Super Strain Insulator is a good fit for all tensions of fence. It is the strongest, long term end strain insulation for high tensile permanent electric fencing. It features a large tracking distance to minimize power leakage, and the UV-resistant polycarbonate it's built out of maximizes its lifespan, which is backed up by Gallagher's 10 year warranty. | Gallagher Super Strain Insulator in White | Size 5 Pack