Dare SNUG-SWP-25 Black Plastic & Wood Post Insulator 2.7 L x 10 H x 9.9 W in.
Heavier and tougher than others. Insulator rests on 3/4"nail surface. Won't tear or crack loose. Molded of high density polyethylene with UV inhibitors for all weather durability. With nails. Lawn / Garden / Farm Supplies.