Charm to Accessorize Fitbit Flex, Fitbit Charge Other Activity Trackers - The Avery Rhinestone Studded Charm to Dress Up Your Favorite Fitness Tracker SIZE: 1.4 long x 1.2" wide *approximately Don't ruin your professional or dressy outfit with only a plastic wristband! Dress it up! Beautiful & high quality, this is a great alternative to more expensive Fitness tracker Jewelry! One Year Warranty. This product is not an official product of Fitbit Inc. Activity Tracker not included.