Lucco Strong Magnetic Silicon Magnetic Clasp Clip Cover Strap Wristband Bands for Fitbit Flex Activity and Sleep Tracker You don't need to wear it on your wrist when your are sleeping. You can just clip it to your shirt or bra for sleep tracking. Clip it on your clothes keep you away from flex band tan line in summer. Personalize your wristband to match your daily style with these clasp new color choices. Colorful clip is perfectly fit for your Fitbit Flex activity tracker and comfortable wearing Replacement for lost or damaged band. Made of Silicon. Prevent skin irritation. Packaged included: 1x fitbit flex clip