Piano is a very difficult instrument to learn, especially the key to remember what is the note. This is very challenging for both children and adults. This keyboard sticker is big enough for anyone to see it easily when playing the piano. It is very helpful for people to learn and practice. Features: 1.?TRANSPARENT AND DETACHABLE?This keyboard sticker is transparent, easy to remove, and coated with a durable adhesive material that will not damage the keyboard. 2.?EASY TO READ?The children on this keyboard sticker are large and clear. They match the keyboard perfectly. They are clear and easy to read, making it easier to learn the piano. 3.?NO RESIDUE?This piano sticker can be removed without any residue. Don't worry about damaging your precious keyboard or piano. 4.?MULTICOLOR DESIGN?Colorful piano stickers are very eye catching, which help you pay attention to the notes when playing. It makes learning notes easy and speeds up the memory of keys. Very suitable for Piano Beginners and small masters. 5.?EASY TO INSTALL?Numbers below the sticker help you install quickly. If you put them in the wrong place, you can take them out and put them on again. Specification: Condition: Brand New Material: PVC Color: Multicolor Each Size: Approx. 3.5 * 1.5 cm / 1.4 * 0.6 in Weight: Approx. 12 g Package List: 1 * Set of Key Stickers Note: Piano in the picture is just photography prop, there is only one set of keyboard stickers.