Offering a great way of customizing your fitness tracker, the Fitbit Alta HR & Alta large leather accessory band looks cool & stylish whether you are working, walking in the park or enjoying an evening out with friends. It is manufactured from soft, genuine leather & has been designed for use with the Fitbit Alta HR & Alta fitness trackers to guide & motivate you every day. The band provides a blend of comfort & confidence during casual outings & fits wrists 17cm-20.6cm (6.7''-8.1'') in circumference.