Hot Dipped Galvanized Investment Cast Steel The SeaHook Claw Anchor is roll stabilized to perform well on short scopes and set effectively Designed to right itself no matter how it lands on the bottom, it remains stable under a wide range of tide and wind conditions Exceptional holding power in most sea beds Stows easily on a bow roller Quick set and reset Constructed of hot dipped galvanized cast steel in a single piece design for maximum strength and holding power 318501318530 are investment cast 318550318580 are sand cast Heat treated type C1035 steel A competitively priced alternative to the Bruce anchor Weights vary due to metal and coating content, listed weights are approximate This product replaces 318507.