Great extender band for fitbit sense 1 2, fitbit versa 1 2 3 4, fitbit charge HR 2 3 4 5 6 watch bands. Use as simply as the way like you wearing watch band - 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 watch band! Connecting with our extender band, you can easily extend the watch band from small size to large size even x-large size, if you like, you can also put the watch band on your ankle and enable you get more accurate steps when cycling, running on a treadmill, or pushing a grocery cart, etc.
Notice:
The extender bands are specially designed for fitbit band made of rubber material (TPU/silicone), not for leather band or metal band, please check your band before the purchase.