features High-quality material: This piano sticker is made of high-quality silicone material. The material is environmentally friendly, waterproof and dustproof, and will not damage the keyboard, providing you with a safer learning environment. FUN AND EASY TO READ: These piano stickers are just the right size with clear notes and easy to read numbers. The black keyboard makes the set easier to read and more fun for children. Due to the universal size, the stickers are suitable for all kinds of pianos and keyboards. Stickers for learning piano/keyboard/electronic piano. Note: due to lighting effects Different, the actual color may be slightly different from the picture due to manual measurement And the deviation is 1-3 cm Description: 61 keys Package size: 18.5*9.5*1.8cm