This is for one (1) quality marine grade stainless steel (AISI 316) 8.8lb (4kg) Bruce Claw Force Style Anchor. Not to be used for overhead lifting. One piece design provides excellent holding power in nearly all bottoms including mud, sand, rock and coral. Stows easily on a bow roller. Rougher wind conditions or different bottom conditions may require a larger size anchor. This Bruce Claw Force Anchor is very effective in a variety of seabed conditions. This anchor sets and resets quickly. The single piece design allows the anchor to remain stable under a wide range of tide and wind conditions. This design is based on anchors used to secure oil rigs in the North Sea. AISI 316 stainless is a premium grade of stainless and is considered by many to be best in class. 316 stainless is corrosion resistant and very durable even in the harshest of conditions.