The cheap pen that changed writing forever - BBC Future
BIC® Gel-ocity Ultra Gel Pen, Retractable, Medium 0.7 mm, Assorted Ink and Barrel Colors, Dozen - WB Mason
Bic Cristal - Wikipedia
Pen Flowing Out Too Much? - Repair Q&A - The Fountain Pen Network
8 Mighty Gel Pens to Boost Your Bullet Journaling | Page Flutter
NPD (sort of...) - Jinhao #6 nib/FPR ebonite feed/Bic ultra section. It does write (but I was too much of a chicken to put real ink in it... maybe later but not
Do you know how a ballpoint pen works and how it was invented? - Education Today News
Causes of pen leaks & how to prevent them from happening - The Pen Company Blog