Features:Made of skin-friendly and high-quality silicone, which is flexible and elastic.Moderate softness, very comfortable to wear.Waterproof and wearable, it can be washed, you can wear it when doing sports such as swimming or surfing.Firm inner lining tightly wraps the bracelet host which can effectively prevent from loss.Easy to use, just insert the body of the band into it., suitable for Mi for smart band 5/6/7. Specifications:Material: SiliconeColor: Black, White, for Grey, Red, Yellow, Purple, Blue(optional)Size: about 65x20.5 mm/2.55x0.80 inchApplicable Model: for Mi for Smart Band 7 6 5 Note:Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you mind. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes:1 Piece Repalcement Strap