Heavy-duty stainless steel. Handles and securely stows plow, Danforth, Fortress and Delta type anchors. plow-type (CQR) anchors with a locking pin, and most sizes of pivoting-fluke (Danforth) anchors. For sailboats and powerboats using chain to 1/2" and line 1.5" in diameter. Marithane wheel with self-lubricating bushing. Can be padlocked. Patented self-adjusting mechanism.