Amythyst Unisex Men's and Women's Yellow Gold Tone Stainless Steel Cuban / Curb Link Chain / Necklace 3mm (24 Inches) Hypoallergenic; nickel and lead free stainless steel. Measures approx. 3mm wide and 24 inches long. Classic cuban link style chain. Can be worn by itself or with a pendant. Unisex. Suitable for children and adults.