Xiaomax 10 Kinds of 2 Size Large / Small Replacement Bands with Metal Clasps for Fitbit Flex / Wireless Activity Bracelet Sport Wristband / Fitbit Flex Bracelet Sport Arm Band(no Tracker, Replacement Bands Only) Replacement Rubber Band (No tracker) for Fitbit Flex Wristband Bracelet Replacement for lost or damaged Bands! Free size fit your wrist depend on button site you place. Comfortable for sporting time,Look good no matter what you are wearing. Size:Large and Small NOTE:No Tracker or other parts! For Fitbit Flex Band only! Not for Fitbit one or other Models! Replacement Rubber Bands with Clasps Only.