【Transparent material】Our piano keyboard stickers are made of high-quality environmentally friendly PVC, which is completely transparent and can blend seamlessly with your piano keys. These piano stickers are removable without leaving any residue or causing damage, ensuring that your keyboard remains original while enhancing your learning experience.With free black key stickers + piano cleaning cloth + dust stickers. 【Clear and eye-catching design】The piano keyboard stickers are printed with labels under the protective layer to prevent fading and ensure long-lasting clarity. Larger and bolder letters and staves improve visibility, making it easier for children or beginners to familiarize themselves with the keyboard layout, thereby improving practice efficiency. 【Easy to apply and ultra-thin】This piano sticker is designed with two small marks for precise alignment and can be easily applied in a few minutes. The ultra-thin material is almost imperceptible on the fingertips, bringing a natural playing feel and will not interfere with your performance. 【Suitable for various pianos】Our piano keyboard stickers are suitable for most standard pianos and electronic keyboard models with 37, 49, 54, 61 or 88 keys, suitable for different learners and instruments. Great for home practice, music lessons or classroom use. 【Reusable & Transparent】Made of high quality PVC eco-friendly material, transparent just like printed on keys, removable but won't leave any traces of glue and won't damage your keyboards.