Fitbit Alta Bands, HWHMH Colorful Replacement Bands with Silicon Fastener Ring for Fitbit Alta Only (No Tracker) 5PCS Replacement BandsBlack, White, Purple, Pink, Teal. Including 10pcs Silicon Fastener Ring. Size: Small 5.5"-6.7" 140 mm-170 mm; Large 6.7"-8.1" 170 mm-206 mm. Size is adjustable according to your needs or wrist. No tracker or other parts!!! FOR FITBIT ALTA BAND ONLY!!! Not for For Fitbit Flex, One, Force ,Charge or other models!!! Silicone Fasteners Ring - Prevent the clasp loose and fall off. Keep your Fitbit Alta Band safe. Comfortable wristband match your daily style. Perfect fit for your Fitbit Alta activity tracker and comfortable wearing experience.