The addition of solfege syllables such as do,re,mi,fa,so,la,ti to the musical note strips is designed to assist musicians and singers in accurately vocalizing the notes during music practice and performance. Whether you wish to sing along with the melody while playing or simply need a reference for your vocal performance, these solfege symbols can prove to be incredibly helpful. These note strips are made of silicone, and the note labels are interconnected, eliminating the need to stick them on the keys one by one, unlike traditional piano stickers. Installation is straightforward and hassle-free. Plus, they can be easily removed without leaving any residue, keep your keyboard stays clean and tidy. You don't need to know the names of the keys or where middle C is. Simply place the note strips on the piano keyboard, and you're good to go. Done in seconds! As you become more acquainted with the keys and octave patterns, you can remove the note strips from the keyboard. And if you ever feel like you need them again, you can easily reattach them at any time. Covers all keys of 61-key piano keyboards, also suitable for 54/49 keys.