Zareba IWNB Z Slant Nail Insulator Review

Fastens electrified wire to wooden posts without losing energy through the post. Extends the wire 2-1/2-inch from the wooden post. For 9 gauge through 22 gauge high-tensile steel wire and aluminum wire, all polywire (both regular and heavy duty), and polyrope up to 1/4-inch in diameter. Comes with double-headed nails. 250 insulators included.