Fitbit Bracelet for Fitbit Flex Fitness Activity Trackers - The KATE INSIGHT Single Strap Plain, Studded or Crystal Studded Metal and Vegan or Genuine Leather Buckle Fitbit Bracelet S/M - Inner Circumference = 5.5"- 6.25" inches, Width = .6" inches unwrapped, 1.5" wrapped *approximately M/L - Inner Circumference = 6.25"- 7.9" inches, Width = .6" inches unwrapped, 1.5" wrapped *approximately Sizes Similar to traditional Fitbit Flex Silicon Wristband Sizing. No one will ever know you're wearing a Fitbit! Never lose your Fitbit Flex again - Super secure!. Hand painted. Color and splatter design may vary slightly from photo.. Color may vary slightly from photo. This product is not an official product of Fitbit Inc. Activity Tracker not included. Color may vary slightly from photo.