Gen3 Marine Anchor Chain Shackle Kit Strengthen your anchor hold by adding the Gen3 Marine Anchor Chain Shackle Kit to your anchor line. Each size of the hot dipped galvanized anchor chains comes with two anchor shackles. Not only does kit give your anchor a stronger hold, it protects your line from the wear of the seabed. Hot dipped galvanized finish for durability Includes two anchor shackles Strengthens anchor hold California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.g