This is a quality, high grade, marine stainless steel (AISI 316L) chain specifically manufactured for use in lifting in marine applications or where high corrosion resistance is desired. Superb for anchor chain, lifting chain and general heavy duty work in a marine or chemically harsh environment. The link size is 6mm or 1/4” imperial equivalent. This listing is by the foot. Order the number of feet you require. If you want one length of 10 feet, enter 10 in the quantity box, if you want 2 lengths of 10 feet, add the first one to the cart then add a second one etc. If you put 20 in the quantity you will get one 20 foot length. The Cromox brand stands for innovative quality made by Ketten Walder GmbH. This Cromox chain has a Working Load Limit rating of 2020lbs Chain size: 6mm x 18mm. This chain meets or exceeds all the requirements of DIN5687.