Single swivel or dual swivel anchor to chain connectors made from 316 grade stainless steel. Prevents chain and anchor from twisting when setting and retrieving anchor. Slides over bow rollers for easy retrieval. An allen key is provided with each swivel to remove the pins to attach the anchor and chain. Safe working load (SWL) is stamped into each swivel. The smaller size suits 6 - 8mm chain and has an 850 Kg SWL. The larger size suits 8 - 10mm chain and has an SWL of 1,350 Kg.