Jumbo Ring Insulators are a simple, effective solution for supporting electric fence wires on posts. They hold most types of electric fence wire including polirope, coated wire, and braid. Excellent arcing protection reduces shorting. Made from UV-stabilized plastic for long life. To install, drill a guide hole into the post, screw the insulator into the guide hole, and insert the wire into the ring. Recommended for equine use.