End Strain Insulators are an effective solution for terminating electric fence wires. They hold most types of electric fence wire and work on all types of posts. Excellent arcing protection reduces shorting. Made from UV-stabilized plastic for long life. To install, connect the support wire to the post, thread the wire through the insulator and tie off. Then thread the fence wire through the other hole in the insulator, and tie off to end the fence run.