An unusual mechanical pencil from Tombow, the Monograph features a shaker mechanism that advances the lead when you shake the pencil back and forth: a quick flick is all that's needed to push more lead out whilst writing.
Using the shaker mechanism isn't mandatory, as pressing on the pocket clip will also advance the lead. Both mechanisms can be disabled by pushing the pocket clip up into the 'lead lock' position.
Extra-strong fixed lead pipe is 3.7mm long. 0.5mm lead only. Replaceable twist-advance eraser stored in the end of the pencil.
To refill the Tombow Mono Graph Shaker Mechanical Pencil, pull off the eraser and black rubber section and insert lead into the barrel of the pencil. To reinsert, line up the notch on the black rubber section with the groove on the barrel.
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