DigiHero Wristbands Replacement Band for Fitbit FLEX Only/No tracker/Wireless Activity Bracelet Sport Wristband for Fitbit Flex Bracelet Replacement Arm Band Armband The wristband comes with a secure watchband-style closure to keep your Fitbit on your wrist The DigiHero accessory band is specifically designed for Fitbit Flex. Fitbit device not included. band only Our Color Bands feature a top window cutout that reveals the device LED lights The DigiHero accessory is a one size fits most wrists size Designed to fit most wrists (5.5"- 8.25")