Works with Alta HR and Alta trackers. Available sizes S-M (5.5-6.5) and M-XL (6.5-9) inches (circumference of your wrist) The band for the Fitbit Alta fitness tracker is made from quality leather. The decoration and closing is made from stainless steel. Shop a jewel for your Fitbit Alta! How it Works: We engineered a fashionable way to securely wear your Fitbit Alta tracker perfectly within a beautiful bracelet! So rather than wearing the rubber band that comes with your chip, simply use this elegant bracelet to dress up your look! Ideal to wear on just about any occasion - dates, parties, to the office, weddings or any event! Highlights: Easy to connect the band on the chip! - You can see the indicator lamps on the chip all the time - Don't ruin your professional or dressy outfit with a plastic wristband - Beautiful & high quality We create stunning and unique pieces that are designed to take you from day to night! NOTE: Fitbit Alta DEVICE NOT INCLUDED.Fitbit and the Fitbit logo(s) are trademarks of Fitbit Inc. This item is NOT endorsed by Fitbit. fitjewel does not assume responsibility for loss or damage of any kind that comes to your Fitbit while using this item. This pendant is intended as an alternative to the traditional rubber band when dressing up your look and is NOT intended for wear during high impact or strenuous activities.