★ 3, Widely Use▲ Designed for us in auto upholstery, car seat heater heated heating cooler cooling cool, Animal pet cage, dog cage, cat cage, fence, railing, car seat cover. Easy crimping and closure, Hog Ring kit is spring-loaded to hold hog rings in jaws, 360Pcs galvanized hog rings (Galvanized to Prevent Rusting).