Perfect set of stickers for teaching and learning to play the piano. These stickers can be put right on the keys. There are black stickers for the white keys and white stickers or the black keys, plus you get all the lettered stickers for each of the keys as well. There is a placement guide to help you get the stickers on the right keys. It also comes with a small wooden flat stick to help get the stickers ont eh keys and get any trapped air out so the stickers stick well and do not come off easily.
I received this free but am not required to write a review, but since it works I decided I should let people know.