Dare 2193-25 Western Screw Tight Insulators
For T Posts & sucker rods. Adjusts to fit: T posts, steel - small, medium & large, with or without studs. T posts, fiberglass - medium & large sizes only. Sucker rods - 3/4 diameter only. U posts - small, 1 1/8 wide. Backside only. Small garden U posts1 1/8wide. Insulator opens to attach anywhere on post.