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Pen Refills Guide

Pen refills come in a wide variety of shapes and sizes. Some of these are standards, shared across pen brands and decades of pen designs, while other are propriety and limited to just a few brands or even a few models. This means that replacing the ink in a pen, especially an older one, may end up being a more difficult task than you’d expect.

The goal of this article is to make buying a new ink refill for your pen as easy as possible. A secondary goal to this guide will be maximizing the number of refill options available for each pen. This is only possible once you have a good understanding of refill shapes and which are interchangeable.

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