3mm Now have up to 30" The Figaro gives a little different look to a chain. Nice weight & beautiful soft feel. This high quality 316L stainless steel determines the high strength & high hardness that makes for great wear & antioxidant from discoloring. All chains come with clasp Figaro Chain, Mens 316L Stainless Steel Chains, Figaro, 3mm, 4.5, 7mm Christmas Gift