Zareba IW5XNY-Z Nail-On Extender Insulator, 9 to 22 ga Fence Wire, Aluminum/Polywire/Steel, Polyethylene, Yellow Yellow

This electric fence insulator fastens electrified wire to wooden posts without losing energy through the post. The Zareba® nail-on 5 in extender Insulator extends the wire 5 in from the wooden post. It can be used with all gauges of wire.