The letters and clef on the piano sticker have increased by 20%.Bold font make it easier for children and beginners to identify.It solves the problem that small letters are difficult to find in performance.This thickness of piano sticker is 50% thinner than ordinary sticker.You can hardly feel their presence. The surface of the sticker is smooth, so you can practice glide and arpeggio techniques.Colored piano note stickers are printed under the top layer to prevent the ink from fading, so they are always clear and readable.You can wipe them with our cleaning cloth when they are dirty.It is suitable for 88/61/54/49/37 keys. These instructions can help you install them in minutes.You can paste them onto the keyboard with the joystick. If you paste them in the wrong location, you can find them and paste them again.When you no longer need it in the future, you can delete it without leaving any residue.Piano sticker is a good teaching tool for piano teachers. It is a grateful tool for kids and beginners.Item Name: Piano Keyboard StickerMaterial: Self-adhesive StickerFeatures: Durable, Piano Accessories, UsefulSize: 26cm x 25.5cm x 0.2cm/10.24" x 10.04" x 0.08" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Piano Keyboard Sticker (Others Not Included) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store