Rubber band for Misfit Ray. - Band: Material: Rubber, Color: Black - Clasp: Material: Stainless steel, Color: Silver This is a band for the Ray. It uses a spring-bar (bayonet-style) clasp, making it difficult to detach, and it's made of stainless steel, so it's resistant to sweat. The product includes the band and resin parts to be used with the spring bars. The Ray body is not included. *Please use your existing spring bars. Size: Wrist circumference S size: 15cm M size: 17cm L size: 19cm LL size: 21cm As a guide, the listed sizes should fit within ±0.5cm. Adding +1.5cm will give you enough room to fit your index finger. This product is made to order, so it will take 4-5 days to ship. Returns are not accepted.