Mitsubishi Boxy 100 Ballpoint Pen

Introduced in the late 1970s, the Mitsubishi Boxy 100 Ballpoint Pen has become a quietly iconic presence in Japanese classrooms and offices. Instantly recognisable by its flat-sided barrel and unmistakable orange side button, it is a design that balances practicality with a certain mischievous charm.

Press the top button and the tip extends with a satisfying click. Press the orange side button and the mechanism releases, popping the rear button back up with surprising enthusiasm. Students have long appreciated this feature — not merely for its engineering, but for its desk-side sporting potential involving paper balls and small rolls of tape. One suspects productivity occasionally took a brief pause.

Happily, the writing performance is equally dependable. The ballpoint cartridge offers above-average smoothness for its class, dries quickly, and performs best on smooth paper. Ideal for everyday note-taking, lists, and margin annotations, it’s a pen that earns its cult reputation through both character and competence.

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