This black curb chain necklace is just 2mm wide. Although the chain is thin, the links are strong and durable. Many people use this chain to showcase their favorite pendents. This black necklace can also be worn as is if you are in search of a subtle yet sophisticated accessory. We offer this chain in a wide range of lengths (18 inches up to 40 inches) to ensure we meet everyone's necklace needs. This curb chain is made from 316L Stainless Steel which is a long-lasting material. 316L Stainless Steel is extremely popular because of its hypoallergenic and low maintenance qualities.