This piano note labels are made of silicone, eco-friendly, waterproof, no glue, no adhesive. Easy to install, easy to remove, leaves no residue, ready to use and keeps your keyboard clean and tidy. Our piano note guide is perfect for beginners and kids to learn and memorize music theory, sheet music and key positions. The detachable piano letters come with a gift box for easy portability. This detachable piano keys are more convenient for beginners and adults, just stick them on the piano keys in 1 second, don't worry about damaging your piano. When you don't want to use it, just press the black key and put it in the box. It can be reused and never fade, very suitable for your kids. This is a no-sticker 88-key piano decal that covers all notes on an 88-key keyboard and works with all popular piano models and standard 88-key piano keyboards. Easy to install, thin the middle C before placing the board on the piano, then combine the keys to layer the notes. There are 3 piano silicone straps in the box, which are bass silicone piano strap, midrange silicone piano strap and treble silicone piano strap, the sizes are 35cm, 37.5cm, 50cm respectively. The piano letters are big enough, clear and easy to read, kids will feel happy when learning the piano and memorizing note positions, perfect for beginners. Note: Suitable for 61-key and 88-key pianos. Material: Silicone Color: Black and White, Colorful(optional) Weight: 200g Package List: 1 x Piano Keyboard Note Labels