As designers, we relish how actions of drafting and where they take place interact. This pen-ruler combination perfectly fits your notebook as a bookmark with its unique droplet shape while fulfilling different uses - on paper, on tablet, and on the go - with the interchangeable heads. Sleek, compact, this finely crafted tool is light and delightful to unleash your ideas with joy.
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Specifications
- Finely crafted milled aluminum body
- 60g, 138*25*11mm
- Interchangeable heads for different uses (ballpoint, stylus, lanyard). The changeable screw is on the top of the ruler, NOT on the back of the pen.
- Refill: Uni-ball Signo refill UMR-85/UMR-83
- Made in Taiwan
We ship worldwide.

Rule/One is a designers dream come true.