I bought this to replace a the original band that started to split on my blaze. While I originally bought the large blaze, I noticed that after several months (well over a year) of daily use and workouts, the band begand to stretch and I was almost on the last notch. I have relatively small wrists for a guy and decided to give the small band a try. It is a bit tight but I can get it on the 3 hole from the end and it is snug and secure. Assuming it will also stretch over time and eventually I will be using it one or possible two holes higher which would it put exactly where I want it.
Interesting enough, both the belt side and hole side of the band are slightly different widths than the large band. While I don't think I could tell by looking at them when on a the watch, I notice it when they are side by side and when I tried to use 1/2 of one and 1/2 of the other. If I could have kept the large belt side and used the smaller hole side that would have proven ideal and I think I would have rated it 5 stars. Still the Fitbit branded bands appear to be of better quality than the 3rd party band I tried (band would not stay attached), so overall I am pleased.