The Navy Anchor is a classic, proven design, which has been in use on large vessels and warships for over 100 years. Navy Anchor performance comes from the combination of weight and mechanical principle. Like all fluke anchors, chain isrecommended for proper performance.Working Weight: 19-20lb.Recommended boat size in winds up to 30 knots: < 24'Recommended Scope (anchor rode/depth in feet): 7:1Recommended Chain: Color Coated Anchor Chain