Lars Zimmermann / O.pen / Other / Sets · March 1, 2024

O.Pen

↑ the “graffiti” edition

initial prototypes ↓

O.pen is one out of six open design pens by studio Mifactori

Makes from the “graffiti edition” by studio Mifactori

O.Pen‘ is a simple but effective open design ballpoint pen that supports all standard refills.

by Lars Zimmermann

Just prototypes for now

3 parts in the 

Globally available:

Locally ⚑ available in:

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Set stats: 3 prototypes, 20 makes, 0 products info

On parts & builds

  • “It happened to most of us: Our favourite ball point pen is suddenly out of ink. We search for another ball point pen to swap the refill. Only to discover: the refills are different. The new one does not fit. Well if the O.pen is your favourite pen this won’t happen again.” The pen fits to all available refills:

  • ↑ This pen can hold different kinds of refills. The inner tube has an insert thread to lock the refill in place with a set screw.
  • The images show different prototypes testing the same idea. It works. ↑
  • Need a cap? A short piece of silicone tube will do. (See image with the black caps) 

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