No need to stick: The piano stickers are made of silicone, which string the labels together, and there is no need to stick them like piano stickers. Easy to install and remove, it will not leave residue or damage the piano. Large bold letter design: Each key is marked with a large, bold and easy-to-read letter to help learn music symbols and finger positioning. In addition, we added "Sharp and Flat" display and "" on the music labels. Flexible fit: The note stickers are suitable for full-size keyboards of 88, 76, 61, 54, 49 or 37. For 76/61/54/49 keyboards that need to be cut with scissors, please refer to the installation guide. Removable and reusable: Our piano key stickers can be quickly attached and removed as needed. When you begin to understand and become familiar with the octave rule, you can remove the note strips from the keyboard. Portable learning aids: These stickers are packaged in a small box, which is convenient for learning music in class or practicing at home. With these tools, beginners can easily start their music learning journey.