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Product Review
- Compatible with Fitbit Flex, Fitbit Flex 2, Fitbit Alta, Alta HR，Fitbit Inspire Hr fitness wristband and fit tightly
- Extend your fitbit wristband from Small size to a Large or X-Large size
- Wear your Fitbit wristband around ankle and get more accurate step counter
- Fit adults ankle between 9" to 12" sizes, comfortable fit and no worry losing your fitbit
- Package only include 1 x extender strap & 2 silicone fastener ring!
