DescriptionCompatible Models:Xiaomi Mi Band 8Xiaomi Mi Band 9Available Size:Fit for Fit for 6.3" -9" (160mm-230mm) wrists.Fit for most mens and womens wrist size.Feature:High-quality Material --Made of premium silicone material waterproof soft and comfortable to wear.Seamless Match--Fits as good as original xiaomi mi band 9/8 bands..Free Warranty:12 month warranty for replacement or full refund needn’t return the item.