This product is a thumb piano sticker, suitable for beginners to practice. This is a very professional training tool, it can help you the skills faster and become familiar with the . Made with excellent craftsmanship, it has a bright appearance and you can see them more clearly. Easy to paste and peel, it can easily meet your needs and bring you convenience. Features -Color: White, blue, green. -Material: Paper. -Size: About 12.00X1.50X0.10cm/4.72X0.59X0.04inch. -Made with craftsmanship and excellent durability, it can serve your thumb piano for a long time. -It is made of paper material, safe and environmentally friendly, durable and bright in color. -It is suitable for beginners to learn to play the thumb piano so that they can recognize the clearly. -Lightweight and compact, it does not take up too much space, and it is convenient for you to store and carry. -The installation is simple, convenient and stable; when not in use, it can be easily torn off without leaving any residue. Package list: 10 x scale stickers 10 x white stickers 10 x green stickers