COMPATIBLE FOR Fitbit Alta HR, Fitbit Alta and Fitbit Ace; NOTE: Fitbit Alta/Alta HR Tracker are Not Included; <p> PREMIUM MATERIAL: ZEROFIRE genuine flexible, durable TPU material. Soft and durable and very comfortable to wear, perfectly fits Fitbit Alta HR, Fit bit Alta and Fitbit Ace; <p> TWO FREE SIZE: Fit wrists size Small size for 5.5 - 6.7" wrist, Large size for 6.7 - 8.1" wrist. <p> MULTIPLE COLOR CHOICE: Various Colors --Rose gold, silver, gold, black, gray, purple, teal colors and two selected sizes replace your original Fitbit Alta/Alta HR bands for personalize your Alta/Alta HR to fit your mood and outfit in daily life. <p> 24 MONTHS WARRANTY: We do our best to provide you with the best customer service. We offer you a 2 year money back guarantee or product replacement! In addition, you are entitled to lifetime service and you can rest assured that making this Fitbit Alta/Alta HR replacement band yours is entirely risk free. <p>