Stop the chain clang NOW. This chain sock is a high tech polyester blend braid that encases your 6mm short link anchor chain. If you have a drum winch then this is a must as it eliminates almost all of the clanging and rattling when retrieving the chain over the bow sprit and roller. The 8 mtr length will cover about 6 mtrs of 6mm short link chain, the 10 mtr will cover about about 8 mtrs of 6mm short link chain and the 12 mtr length will cover about 10 mtrs of 8mm short link chain.