Thank you for viewing. This is a simple Figaro chain bracelet. Made of stainless steel, so it is a rust-resistant material. Unisex (for both men and women) Sizes: Wrist circumference (inner diameter) S size: 15cm M size: 17cm L size: 19cm LL size: 21cm (Example: If your wrist circumference is between 16.5cm and 17.5cm, 17cm would be the appropriate size.) Please specify your size after purchase. (If no size is specified, we will send the M size. Please understand.) Chain width: 6mm Material: All stainless steel Color: Silver Please feel free to ask any questions.