The unique 3-in-1 design provides freedom for you to explore, experiment, and has the flexibility to transform from a fountain pen, ballpoint pen, or rollerball pen in seconds. No hacks, no spacers, no complicated setup...it simply works with virtually any refill/ink you can toss inside to provide the most customizable and flexible writing experience.

Big Idea Design is known for making pens compatible with more refills than any other brand. Over 750 compatible refills.