Rocna AnchorsThe Rocna is a true multi purpose anchor that sets and holds in most seabeds, from soft mud to hard sand, clay, grass, and kelp. The Rocna shank is designed so the anchor self launches and self stows on the majority of bow rollers, with the greatest possible reliability. Rocna anchors consistently out perform the more traditional plough and claw type designs. Rocna Anchors Features: Fast Set Typically Buried Within 3 Feet Tenacious Holding Sand, Mud,