There is not one, not two, but three full 20 fret kits on this tiny sheet of vinyl. One is with full circle notes with their symbols. And other circles set is for more advanced levels as it doesn't contain note names and is cut in halfs so you can have a choice how to put them after you get used to colors.

Some day you will be able to play on any fretboard, even with no colorful cues - muscle memory and musical understanding are really effective. But even then it's so fun to have a palette of colorful notes to play at hand!