Stainless Steel channel lock sercures your anchor and prevents accidental drop at sea. Allows quick release of anchors on bow rollers of 20-50 boats. 516 faspin locks shackle or chain in place for chain up to 716 and anchors up to 70lbs. Overall Lenght 4 Overall Width 1.5 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Anchor Rollers Mounts Locks Wiser Yes Product MPN AL-1 Product UPC 798772101215 Fast Ship In Stock Ships Today