Anchor Shackle, 21 ton, 138 in, 112 in Pin dia, Round Pin, 519 in Inner Length, 314 in Inner Width, 214 in Opening, 314 in Eye Outer Size, Alloy Steel Body, Alloy Steel Pin, SelfColored CM CM alloy shackles are designed with a 51 design factor and have a strength rating approximately 50 higher than a comparable sized carbon shackle and about 25 stronger than super strong shackles Anchor shackles can be side loaded or used for multiple connections