Features: The note strip is made of silicone, and connects the labels in series, so there is no need to stick to the keys like piano stickers. Easy-to-install, Easy-to-remove, Without leaving any residue, and keeping your keyboard clean and tidy. Showing the note of each key with double staff, which helps to find the corresponding key from the keyboard faster, because all piano scores use the treble and bass staff structure. You don't need to know the names of the keys or where the Middle C is, you just need to put the note strips on the piano keyboard. Done in seconds. When you start to know the keys and become familiar with the octave rule, you can remove the note strips from the keyboard. Of course, if you feel that you are not skilled enough, you can put it back at any time. Fits standard sized 88-key pianos. Perfect for grand pianos, upright pianos, 88-key digital pianos and keyboards. Specifications: Material: Silicone Color: As picture Size: 350*40.5mm/375.3mm/496.8mm Package contains: 1set(88 keys) Note: Please allow slight dimension difference due to different manual measurement. Please note that slight color difference should be acceptable due to the light and screen. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom’s policies and EU Product Safety and Compliance laws.