Description 1.75 inch O.D. Outside Diameter 1.25 inch I.D. Plated Ring Fastener features open edge for easy application. E-Z rings are used with both steel and plastic chain. The ring is spread, making it easy to install the tag. For safety, the ring will open under a 750 lb. pull. 4999-1022-003 1589 Related Items; 1022-016 - Steel Cattle Chain 40 inch