Lewmar Stainless Anchor SwivelLewmar Anchor Swivel is made from 316 Stainless Steel and can swivel 360 degrees. Attach the swivel between the anchor and the chain, allowing the rope to swivel instead of twisting up.Models Available: SWIVEL312F; Working Load: 4500 lbs; Chain Size: 1/4"-5/16"; SWIVEL500F; Working Load: 7000 lbs; Chain Size: 3/8"-1/2";