A Tombow MONO Graph Lite Mechanical Pencil equipped with a refillable MONO eraser that is 30 mm in length and a retractable diameter of roughly 3.6 mm. The surface of the pen grip has been textured in a way that prevents the user's fingertips from sliding and provides for a secure grasp with minimal effort. Also, the pen grip reduces the stickiness from use, resulting in a dry and comfortable hold that's easy on sweaty hands. A combination of a fixed long pipe and a stepped tip design provides a wide field of view at hand that makes it easy to see fine characters as intended.
Refillable retractable MONO eraser
The pen grip with the unique texture
A wide field of view long pipe and a stepped tip design