Folding grapnel anchors are made with 4 arms that fold flat against the shank for compact storage. Constructed of hot dipped galvanized iron with forged flukes they are an inexpensive backup anchor on larger boats or great as a primary anchor on dinghies, PWC's, canoes, kayaks and small sailboats. Lockable in opened or closed position they are ideal for inflatable boats as there are no open flukes to puncture the sensitive fabric.