25 per bag, black.
For use on T-posts.
Protects existing fence by extending electric fence wire 5 inches off the T-post. Fits standard T-posts. Holds most sizes of electric fence wire including poliwire. Excellent arcing protection to reduce shorting. UV stable and designed for long life. Snap insulator into place on back side of the T-post. Insert wire into claws on front of insulator.