Pentel Shake AS305 ● Pink ● Lime Green A shake-knock type mechanical pencil that extends the lead by shaking. The vivid color body has a transparent window, allowing you to see the movement of the gears every time you shake it. It's quite old. It shows signs of use. The printing is peeling off. There is deterioration of the rubber, etc. It's still usable!! How about it, enthusiasts? Please refrain from purchasing if you are concerned.