Fitbit Wristband,Jiale 2015 Replacement Band with Clasp for Fitbit Flex Only / No Tracker / Wireless Activity Adjustable Sport Wristband Fit Bit Flex Bracelet Sport Arm Band(1* Purple white dots+ 1 *White leopard ) This wristband is made from TPE material,supplied by the original material supplier of Fitbit Inc Its softness and brillance color are very stable,even under the extreme cold or hot temperatures. Zinc alloy is used for the lock catch part,which makes the wristband so unique. The package includes a piece of fastener Size is adjustable according to your need or wrist.