Introducing the 2024 version of the Tombow MONO Graph mechanical pencil, now in collaboration with Sanrio! This pencil combines the beloved Tombow "MONO Eraser" with an innovative "Shake-mechanism." You can extend the 0.5mm lead by either shaking the pencil up and down or by pushing the clip downward, offering a smooth and effortless writing experience. The locking mechanism ensures the lead won't extend accidentally, even when shaken.