<b>Batiny Durable Silicone Comfortalbe Wristbands for Fitbit Charge 4 / Charge 3 / Charge 3 SE(Large/Small) Sport Edition </b><br><br> <b>Features</b><br>- Premium Waterproof Material : Waterproof,sweatproof, lightweight and easy to dry, great choice for outdor,sports and other occasions<br> - Seamless Joint Style : Double colors and double layers combined perfectly that inspire your amaizing mood and outfit in daily life<br> - Unique Buckle Design : Stainless steel pin, easy to clasp, pin-and-tuch lock.<br><br> <b>Optional size: </b> <br> - Small size of Waist: 6.8'' - 8.7'' / 172mm-222mm <br> - Large size of Waist: 7.4'' - 9.5'' / 186mm-242mm <br> - Width of band: 0.87'' / 22mm <br> - Thickness of band: 0.115'' / 2.9mm <br> <br> <b>Easy to install: </b><br> 1. Press down on the latch button next to the tracker.<br> 2. Slide the pin and insert the other side of pin into place.<br> 3. Lock on the tracker, seamless fit.<br> 4. Pin-and-tuck closure keeps tracker precisely and securely.<br><br>