Tombow Mono Graph One Mechanical Pencil DCD-121 0.5mm

The fixed long tip allows high precision when writing.

The side knock mechanism allows advance the lead without changing grip. 

Innovation shake-mechanism that allow user to extend lead by simply shaking the pencil. 

Refillable eraser with Mono eraser E-ER-MG.

6 colors available. 

Sequence from left to right: Standard, Blue, Lime, Red.