For 18 gauge barbed wire/12.5 gauge smooth wire/14 gauge smoth wire. Bracing solution for electric fence systems using t-posts and regular posts. Insulates the electric fence wire from the grounded post. Ideal in insulated and non-insulated fencing terminations. No special tools or accessories needed. Simple hand weave installation with smooth rigid fit. Safe and strong for animal containment. Manufactured from tough galvanized steel (Class 3 or above).