The Mono Graph Shaker Mechanical Pencil by Tombow features a unique "shake mechanism" that allows you to advance the lead simply by shaking the pencil back and forth.
- Winner of the 2014 Good Design Award and the 2016 Red Dot Design Award.
- "Shake lock" mechanism ensures lead doesn't advance when the pencil is in your bag. Activate by pushing the clip upwards.
- Measures 10mm in diameter, 147mm in length.
Pastel colours also available.