for Fitbit Alta HR and Alta Bands Large Small, Bon Tech Replacement Wristbands Fitbit Alta HR Accessories Straps Premium stainless steel woven mesh loop band for Fitbit Alta HR and Alta. It is soft, flexible, durable and comfortable. The strong magnetic clasp can hold your Fitbit Alta HR securely, the magnet stays on your wrist without coming loose. The sizes can be adjusted easily with the magnets, one size fits for most wrists from 5.5 - 8.1 in The stylish and classic design will coordinate with your outfits, many colors are for your option, or you can choose several colors to change. 100% money back guarantee, please contact us if there are any problem or question, we are always here for you.