The 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, Clay, or Weeds Stays Buried Even With Veering Loads Rugged Construction, with high tensile shank Local or Offshore cruising, Power or Sail RocnaVulcanCatalog