Pack of 2 Schmidt 5888 Rollerball Pen Refills, Black Medium Pack of 2 Schmidt 888 rollerball refills in black medium (0.7mm). High quality German manufacturing with metal barrel and ceramic tip for smooth writing. For more than 50 years, Schmidt has made refills for most of the high quality European pen manufacturers. For all rollerball pens using the international size refill, 4-3/8 long (110.6mm). Made in Germany by Schmidt and packaged in the US under the Private Reserve Ink label. Additional Images: Rollerball refill is 4-3/8 long (110.6mm) Partial list of brands: Acme, Aurora, Bexley, Bossert Erhard, Caran d'Ache, Colebri, Conklin, Conway Stewart, Delta, Diplomat, Faber-Castell, Itoya, Jean-Pierre Lepine, Marlin, Montegrappa, Monteverde, Pentel, Regal, Retro 51, Recife, Rosetta, Rotring, Stipula, Visconti, Waterford, Yafa, Yard-O-Lead and any other brand using the European 4.39 long (110.6mm) rollerball refill.