Material: Silicone_x000D_ Applicable models: compatible for BIOCERAMIC11. Compatibility: This strap is made of safe, eco friendly, breathable, high quality silicone material, compatible for BIOCERAMIC replacement strap. 22. Safer clasp: The clasp is made of high quality material, it will not fade even after swimming or soaking in water for a long time. Enjoy your sports moments. 33. Comfortable to wear: The wrist design is ergonomic, strong and durable, soft and moderately soft, comfortable to wear, suitable for the wrist circumference. (Min: 5.6inch Maximum: 8.5inch) 44. High quality: This strap is wear resistant, high temperature resistant, non deformed, non toxic, odorless, soft, non cracking, and non irritating to the skin. 55. Unique design: Design football, fashion, sports, it is the best choice for your outdoor sports, multi color optional.Due to the lighting effects and shooting angles, there is color difference in the product, please understand._x000D_ Due to manual measurement, there is a tolerance in the product size.1 Pcs Strap