Fits 3/8" dia. fiberglass posts or Step-In FiberRods Reliable, easy-to-use plastic clips secure low-tension electric fence conductors to fiberglass posts. Harp Clip - 25 per package SnapOn Harp Clips are designed to grip the post snugly, preventing the insulator from sliding up or down unintentionally. UV-treated plastic resists cracking and deformation Thread MaxiShock, rope, twine or narrow tape through clip. The “harp” design lets conductors slip easily into the loop but keeps them from working free. To minimize hand strain, use a SnapOn Harp Clip Tool for faster installation (sold separately). 2.25"L x 1.75"W; Zinc Plated Reliable, easy-to-use plastic clips secure low-tension electric fence conductors to fiberglass posts. The “harp” design lets conductors slip easily into the loop but keeps them from working free. Fits 3/8" dia. fiberglass posts or Step-In FiberRods. Holds polyrope, twine, braid or narrow tape without slipping. UV-treated plastic resists cracking and deformation. Ideal for multistrand fences in pasture subdivisions, rotational grazing or temporary enclosures. To minimize hand strain, use a SnapOn Harp Clip Tool for faster installation. SnapOn Harp Clips are designed to grip the post snugly, preventing the insulator from sliding up or down unintentionally. The clip can be repositioned by hand, but it takes some effort. Plan ahead and snap the insulator onto the post near your desired height. Make sure the harp points upward on the post.