This is a good tool for learning melodica, especially for beginners. Using , it is very light and durable. Help beginners quickly learn the basic principles of melodica note. The creative design will give you a wonderful experience and bring you a good mood. Features - Color: As shown. - Material: PVC. - Size: 23.00X7.00X0.10cm/9.04X2.75X0.04inch. - Melodica stickers can solve beginners' difficult problems of leaning melodica, and help novices to get started quickly and assist in practice. - With these scale stickers, children's melodica skills will be improved quickly, very practical and useful to use. - The stickers are perfectly matched with the keyboard and are clear and easy to read, making them easier to learn melodica. - This product would be the easiest and the most effective melodica learning tool available! - Lightweight and practical, you can hardly feel their presence when playing the melodica. Package list: 3 x stickers