DDup New Release Adjustable Super Soft Replacement Wristband with Secure WATCHBAND-STYLE Closure for Fitbit Flex Activity TrackerDDup Replacement Band with Metal Clasps for Fitbit Flex / Wireless Activity Bracelet Sport Wristband / Fitbit Flex Bracelet Sport Arm Band:
1. Free size fit your wrist depend on button site you place;
2. Durable,fashionable replacement rubber bands for the origin bands;
100% Satisfaction Guarantee:
If you don't like the purchase, we have 30 days no question-asked return."