1. Material: liquid silicone2. Technology: This product is made of liquid silicone material, which is waterproof, sweat-proof, comfortable and soft.3. The strap adopts a thickened design, which is comfortable to wear and easy to use.4. The material is harmless to human skin and non-allergenic.5. Suitable for wrist circumference: 5.5-8.7 inchesNote: The package only contains the watch strap, not the main watch.