These are very creative and practical piano stickers that can make them easier for you to remember the keys on the piano keyboard, because you can remember by watching the sticker. In addition, they can help you play piano music, so as to bring you a sense of satisfaction. They can make you play piano well. Features - Material: Glue. - Size: 24.50X24.00X0.01cm/9.63X9.43X0.00in. - Good visual effect and easy to read. It is convenient for quick and mastering. - Manufactured with quality material, safe and environmentally friendly, children can use them with confidence. - The letters are clear and conspicuous, which can better attract the child's attention and help the child become familiar with the keys. - These are very convenient and practical piano teaching for musical teachers. - The workmanship of these products are perfect, and you will have good experience in using them. Package list: 1 x Piano Sticker 1 x Wooden Stick