1、Better Playing: Pasting numbered notes and musical notation on keyboard keys helps to concentrate the player's attention and improve practice efficiency. 2、Great for Learning: When you forget the piano keys, you can read the piano sticker and tear it off at any time when you want to improve your playing skills. 3、Very Clear to Read: Each keyboard note on the detachable piano sticker is color coded to aid in easy recognition and memory. Larger letters are easier for children and beginners to recognize. 4、Easy to Install: Find the middle C key marked on the piano key label, corresponding to the same key on the piano, and then flatten the keyboard note overlay. 5、A Practical Tool: Piano keyboard stickers are a great teaching tool and a beautiful present for children and beginners. Comes with a box for easy carrying. 6、Applicable Instrument: Suitable for 61 key pianos, electric pianos, and digital pianos. Not suitable for electronic keyboard.