TFUTLT 600 Pcs 1/2" 3/4" 3/8" Galvanized Hog 3/8", 1/2", 3/4", Silver. Publisher: TFUTLT. Compatibility:It is better to use hog ring with hog ring pliers,they arefit most hog ring pliers. Hog rings are made of high-quality steel, strong enough and not easy to break.