Greenfield 2116-W White Coated Chain Anchor 5/16&rdquo; x 5&rsquo; Anchor chain keeps anchor in correct setting position for stronger hold 5/16 x 5 PVC-coated marine anchor chain Recommended Boat Size (Winds up to 30 knots): 1.370 lbs Highly elastic PVC coating stretches to all chain to bend and coil For best performance, use this product with steel shackles to connect Anchor - Chain - Line