Fi-Shock SC-25 Snap-on 5" Reversed Extender T-Post Insulators, Yellow One molded piece that fits the reversed side of all standard (1.25" and 1.33") T-posts Extends the wire 5-inch from the post Molded from high-density polyethylene with UV inhibitor to prevent arcing and provides long life for all-weather performance No hardware needed 25 Insulators per bag