<b>Compatible with: </b><br> compatible with Fitbit Charge 3 Fitness Tracker, <br> compatible with Fitbit Charge 3 SE Fitness Tracker, <br>compatible with Fitbit Charge 4 Fitness Tracker <br><br> <b>Features:</b><br> Material: Silicone<br> Size :<br> Small Size for 5.5" - 7.2" wrist,<br> Large Size for 6.0" -8.1" wrist.<br><br> <b> Package Content</b><br> 1 Pack Silicone Bands compatible with Fitbit Charge 4/Charge 3/Charge 3 SE<br><br> <b> Customer service</b><br> All Chofit products have been checked one by one before sending to Amazon warehouse, please rest assured and enjoy shopping. <br> If you get a defective item, please contact our email at the first time, we are responsible for all quality-related issues.<br>