I have for one, like to have as many different kinds of brushes, just incase! The brushes I received, came in sealed plastic package. As each brush has a plastic cap, to protect the brushes.
For the first three brushes (above) are the smallest in the package. I like to uses these as my clean-up brushes. They are more convenient and small enough to use, when cleaning up around my nails. My favorite one is the #2, which I like to use often.
The next three brushes range more on the medium sizes. The #8 I like to use as a clean-up brush, whenever I have a large amount of mess around my nail. Especially, when doing water-marble or gradient nail art designs. As for the #10 and #12, I definitively like to use these for my water colored nail art designs; like the tutorial below:
You can check for more details on my post here! ;)
Lastly, the largest brush is the #14. I haven't figured out what to use with this brush. But I'm sure it will be useful as a back up, when needed. The brushes were easy to use, especially their transparent handle. You can now purchase the set on their site here, for $6.97.