Material: Stainless Steel. Highly resistant to rust and corrosive buildups, ensuring it remains untarnished for years. Health certification: does not contain harmful Elements. Hypoallergenic, Comfort Fit. Chain Width: 3mm (0.12inch). Length available from 20 to 30; High Polished Shiny Surface. Comfortable Design: Thick curb chain. Smooth edges on each link that never scratches or pull your hair; The shape of necklaces is oval and twisted oval link woven to form complicated wheat crafted chains. Lengthening lobster claw clasps design, easy to use and great quality; This 3mm stainless steel Franco chain is perfect for any pendant you may have laying around, perfect gift for him or her; We use black velvet bag. Emblazon with Reve.Flannel bags can be reused, practical to collect other jewelry or other small items. Very practical.