Thank you for viewing. This is a braided leather surgical stainless steel (316L) bracelet. The clasp is a combination of insertion and magnet. It is stress-free to put on and take off. Surgical stainless steel (316L) is a material with extremely low allergenicity and is also used in medical tools such as scalpels and scissors. It is a special stainless steel with excellent properties such as rust resistance, corrosion resistance, oxidation resistance, and heat resistance. Size: Equivalent to a wrist circumference of 17cm Leather width: 12mm Leather thickness: 6mm Materials: Braided leather (genuine leather) Surgical stainless steel (316L) Color: Braided leather - Black Clasp - Matte silver Please feel free to contact us with any questions.