The "MONOgraph" is a mechanical pencil equipped with a twist-action "MONO eraser." It features a "Frenock mechanism" that extends the lead by shaking it up and down, and a "Frenock" mechanism to lock it in place. It boasts a unique two-shot design!
Size (approx.): Body: Diameter 10 x H147mm; Package: H192 x W50 x D13mm; Lead: HB 0.5mm; Weight (approx.): 17g; Material: Body: PMMA, PC, SUS; Eraser: Synthetic rubber
