Great extender band for slim style fitbit or gamin watch band and perfect fit. Use as simply as the way like you wearing wristband - just simply keep the buckle locking the extender on one end and the extender buckle the band on other end, then you "create" a larger wristband! Connecting with our extender band, you can easily extend the wristband from small size to large size even x-large size, if you like, you can also put the wristband on your ankle and you are able to get more accurate steps when cycling, running on a treadmill, or pushing a grocery cart, etc.

Our extender band compatible with following watch band:
Fitbit inspire 3 band,

Fitbit luxe band,
Garmin vivosmart 4 band,
Fitbit flex band,
Fitbit flex 2 band,
Fitbit alta band,
Fitbit alta hr band

Notice before you buy:
1). The package only include extender straps, not include watch band or device, please understand that the extender strap can not work independently unless you attach it to your band and work together!
2). Our extender strap works with the OEM fitbit bands, but might not with third-party seller's bands, please use our extender strap for your original band.