Commercial-Quality Build: This hog ring plier kit is heavily constructed all the way around to help ensure years of use. The spring-loaded pliers are made of hardened carbon steel and the rings are made of galvanized steel. Increased Productivity: With a magazine that holds up to 50 steel hog rings and a convenient automatic feed system, our pliers ensure increased productivity. The soft, rubber plier handles are ergonomically designed for one-handed use and comfort. Multipurpose Pliers and Rings: Our pliers and rings are the tools you need for a variety of jobs. They're ideal for many uses, whether you need to close sausage casings, mesh traps, freezer bags for storing meat, fish netting, fencing, or more. Specifications: These pliers can clamp the rings to a 9/32" (7.2mm) circle. Stand Behind Our Products: We offer a one-year factory warranty on our Spring-Loaded Pliers and lifetime customer support for any of your questions. We also carry replacement parts for a large variety of our products, past and present.