Here's the official video...
So each month you get 2 sheets (or 1 sheet and 1 lacquer) -- at least 1 of the designs is exclusive, sometimes both. (>>>UPDATE in March, Jamberry announced that going forward both products will be exclusive designs!). They also add a file and an orange stick because you always need more of those. And sometimes there's another bonus, like this pink lipstick that came in the January box.
I know what you're thinking and no, you don't get to pick the wraps. And yes, there is a risk that you'll get something you don't like. But I can help you trade if you don't like it, so don't fret!
When you sign up, you take a quiz to find out your style, but, between you and me, it won't change what's in the box - they're all the same. But each month they make a cute video with style tips. Take the quiz here!