Monteverde Ballpoint Refill for S.T. Dupont Pens - Medium Point (6 Pack) | Premium Ink Cartridges for Smooth Writing | Perfect for Office, Business & Everyday Use

When placed side by side, it is obvious that the blue Monteverde ballpoint pen refill I just purchased is a little bit shorter than my original S.T. Dupont ballpoint pen refill; but this did not impede its performance when I inserted it into my original S.T. Dupont pen. So overall, I am quite pleased to have found a good substitute for the brand’s original refills, which are no longer being produced.