They are practical and useful but also with a hint of fun with their attractive sheet music and Treble Clef design. The Pen is useful for writing those small notes or entire symphonies, while the Pencil never needs to be sharpened: once it's finished just remove that section, insert it at the top and a new section will appear to write with. It also comes with a handy catch so that you can safely store it in a pocket or over a piece of sheet music.