Unlike a traditional swivel hoist ring, the HR-100UNC is made only to pivot. But, it pivots at full capacity. This can still make a big difference when you perform an angular lift, helping to ensure that proper load angles are achieved. Each hoist ring has a bail with generous interior portions, and clear markings such as a Product Identification Code (PIC) for traceability. They are individually proof-tested to 2-1/2 times the Working Load Limit and carry a safety factor of 5:1. As an added bonus, frame sizes 2 and larger are RFID equipped.