The replacable watch strap is designed compatible for ID205, ID205L, ID205S smart watches. Made of environmentally friendly silicone material, odorless and harmless, soft but durable, breathable silicone strap can withstand cold or high temperature, whether you are swimming or climbing, it is ideal choice for you or your good friends. Suitable for 5.7-9.2 inches (approximately 144mm-233mm) wrist, the size can be adjusted according to individual wrist conditions. Flexible but light; many different colors for option, you can change different color to represent your different mood every day. It is ergonomic and adopts mesh ventilation design, which is breathable and sweatproof!