Forums › Forums › Gear – The Stuff We Carry › Pens, Pencils, Notebooks, and Notebook Covers › What happened to the metal F-series refills? This topic is empty. Viewing 1 post (of 1 total) Author Posts September 6, 2025 at 7:58 am #3094 adminKeymaster What happened to the older Zebra metal F-series refills? The current ones are translucent plastic, “Smooth Writing” formula, don’t last as long, and the last one leaked, gumming up the works. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In