FITS: - Acme® - Aurora® - Colibri® - Conklin® - Delta® - Diplomat® - Faber-Castell® - Foray® - Hauser® - Hugo Boss® - Itoya® - Krone® - Lamy® - Monteverde USA® - Montegrappa® - Omas® - Pelikan® - Retro 51® - Rotring® - Visconti® - Waterford® & MANY MORE! Prepare yourself for an unparalleled writing experience with SCHMIDT'S exclusive capless rollerball refill distributed by YAFA®. This technological advanced refill always writes smoother then smooth, with crisp letter perfect characters. YAFA® and SCHMIDT® refills are not manufactured, licensed or endorsed by the pen manufactures referred to on above list. The brand names and trademarks of the pen manufacture are identified only for the purpose of providing refill compatibility information.