Zareba YTPX25N Electric Fence Yellow Wrap-Around T-Post Extender Insulator - 25 Pack (Discontinued by Manufacturer)
"RED SNAPR" POST EXTENDER FENCE INSULATOR It protects permanent or damaged fences. Made of high impact polyethylene. Easy installation. 45 degree front loading feature. Snaps to any T-posts from 1-1/4'' to 1-3/8''. It provides long arcing distance protection from wire to post. Snap-on/snap-off fastening attachment.