Straps Only Compatible with Xiaomi Mi Band 3/Xiaomi Mi band4, Not Suitable for Any Other Models.（Note：Tracker is not included).<br> Free size 5.5"--8.1". The bands are designed by multi-holes for adjusting the suitable size simply.Fits for most of wrist.<br> Made from flexible high-quality elastomer, sweat resistant & water resistant. Prevents skin from irritation, soft, lightweight and durable, very comfortable to wear.<br> Different colors fit your outfits and mood, enhance your taste. And suitable for most occasions,sports. Men and women user can find the most suitable bands for your Xiaomi Mi Band3/Xiaomi Mi band4.<br> Hassle free replacement or 100% Full money back if anything unsatisfied. Just contact us via Amazon e-mail. We will reply to you ASAP.<br>