NOTE:Had better ask professional personnel to adjust the watch band,and follow our installation instructions. For a higher end look, you can go the metal band route. It's still a fashionable accessory and adds a premium feel you don't get from the classic model. It's elegant and comfortable too. It was good quality and very attractive. It goes with everything you wear and looks like a very nice watch. Buckle design- with resize tools，easy to attach and clasp functions well, Fits wrist Perimeter from 5.5" - 8.2"，Definitely upgrades the look of your fitbit!