Charm to Accessorize The Fitbit Flex and Other Fitness Trackers - The Paige Silver and Gold Paisley Engraved Charm to Dress Up Your Favorite Fitness Tracker Compatible with the Fitbit Flex, Fitbit Flex 2, Fitbit Alta, Alta HR and Jawbone Up. SIZE: Length = 1.2 inches, Width = 0.9 inches Beautiful & high quality, this is a great alternative to more expensive Fitness Tracker Jewelry! Ideal to wear on just about any occasion- dates, parties, to the office, weddings or any event! This product is not an official product of Jawbone, Garmin or FitBit Inc. Band and Activity Tracker not included.