NECKLACE INFO: NECKLACE INFO: Width- Chain Width Is 1.3MM, Sizes Available from 16Inches-24Inches, Spring Ring Closure, Basic Marina Chain Made In Italy. SAFE FOR ALL SKIN TYPES: All Our Necklaces are hypoallergenic and nickel free so they are safe for all skin types. If you have sensitive skin, you will love our product. This Basic Marina Chain is a great gift for anyone, Can be worn plain or with a pendant. COMFORT FIT: This Basic Marina chain is a comfort fit design necklace which would make it very comfortable on any women's or man neck, if for some reason you are not comfortable with the fit please let us know.