Case Star&reg; Black Color Square Shaped Carrying Hard Case Storage Bag for Fitbit Flex Wireless Activity Sleep Wristband and Charging Cable USB Dongle/Garmin Vivofit Fitness Band (Black/yellow) Black Color Square Shaped Carrying Hard Case Storage Bag for Fitbit Flex Wireless Activity Sleep Wristband and Charging Cable USB Dongle/Garmin Vivofit Fitness Band (Black/yellow)