1. Material: silicone 2. Easy to adjust the length to fit your wrist 3. Soft and comfortable to wear 4. Easy to install, will not cause damage to the watch 5. Length：107mm + 82mm, width: 19mm 6. Compatible models: suitable for ID205, noise colorfit pro2 / noise colorfit pulse, Willful SW021 ID205U/ID205S/ID205L/ID216/021/SW021/SW025/SW0 7. Note: The product only includes a watch band, not the watch body
