Compatibility: Fitbit Charge 3 and Charge 4.
Material: Silicone band.
Band Length: Small size 5.5-6.7 inches, large size 6.7-8.1 inches. Both are adjustable to fit any wrist.
The band is doing well. It has been a good buy.
Love wearing it!
If works just fine thank you have a blessed day .
Took a while for band to arrive. Customer service very helpful