Cast 316G stainless steel. These chain claws can be used to stop the anchor chain grinding on the bow roller when moored overnight. The claw should be fitted to the chain below the bow roller with a line attached from the eye of the claw to a bollard, holding the chain in place. Used to take the load off the anchor winch.Other Details: Part No. Chain Size(mm) Length(m) Width(mm) Safe Working Load(kg) 26504 6-8 120 65 - 26506 10-12 160 95 -