5 Ballpoint Pen Refills for S.T. Dupont Ballpoint Pens Blue Medium Overall Size - 4 9/16 in. x 3/16 in. (113mm x 4mm) These pen refills, Made by Monteverde, are the smoothest on the market. They utilize their patented Soft Ball technology and their patented Liquid Ink 100% Satisfaction Guarantee Refills are bulk packed and have protected rubber tip covers to prolong longevity. They will ship in a high quality secured in a zip lock bag to assure freshness. We guarantee freshness for 1 year
