High-performance MONO eraser refill for Tombow Mono Graph Mechanical Pencil and Tombow MONO Graph Pen.

Tombow Mono Graph Mechanical Pencil features handy a shaker mechanism that advances the lead by shaking the pencil while drawing and writing or by pressing the clip down.

Tombow MONO Graph Pen is a multi-function pen combining a red ink pen, a black ink pen and a mechanical pencil in one.