This piano sticker rakes can be easily installed without the need for glue, making it convenient and hassle-free to use.Without leaving any residue, keeping your piano keyboard clean and tidy. The material of the piano keyboard sticker has been improved to avoid creasing after use, and the highly soft silicone texture won't bother your fingers while playing. The piano keyboard stickers are coded with bright colors to help kids and beginners quickly and easily identify and memorize notes.When you start to learn the piano keys and become familiar with the octave rule, you can remove the piano note strips from the keyboard. Of course, if you feel that you are not skilled enough, you can put it back at any time. The piano stickers are perfect for beginners and kids to learn and memorize music theory, musical notation, and key positions. They cover four octaves, providing ample material for anyone to start learning the piano.