Attwood 10 lb Slip Ring Anchor - Penetrating fluke anchor digs into mud, sand, or gravel, and stow flat. Pivoting flukes rotate downward into bottom. Excellent weight-to-holding power ratio, compared to cast anchors. Manufactured of hot dip galvanized steel for corrosion-resistance and strength. The assembly is arc-welded steel that maintains consistent fluke-to-shank angles, ensuring quick penetration and a firm hold. Manufactured of hot dip galvanized steel for corrosion-resistance and strength