More Pen Refill Compatibility: D1, Submarine, Euro-Format, and Frixion
You’ve read my first pen refill compatibility guide, and you know the basics: Parker-style refills, G2-style refills, Schmidt upgrades, Zebra F-series. You’re armed with the knowledge that a Jotter refill fits a Lamy Safari ballpoint, and that most Japanese gel pens swap with each other. But you’re standing in your desk right now holding a … Read more