4 Pack - Private Reserve 8127 Capless Rollerball - Black Ink Medium Tip - Black Ink - Schmidt 8127 - A cover cap is not necessary for the Schmidt Capless System refills. While the ink is drying quickly on the paper, it does not so within the refill itself - for more than one year! The Schmidt Capless System combines the individual writing characteristics of a fountain pen with the convenience of a ballpoint pen. The new type of ink dries immediately on the paper, but not in the system for more than one year! Schmidt Capless System 8127 Medium Tip with Black Ink. Metal tube with tampon system, stainless steel tip with 0.7 mm ceramic ball. Refill Reads: Private Reserve Ink 8127 S Ensure Top Quality - Buy Direct from Lanier Pens - Length: 4.28 inch (108.6mm), Diameter - .27 inch (6.9mm) Made in Germany by Schmidt - Distributed in the USA by Lanier Pens