This is an original Schmidt refill imported from Germany. Schmidt German Roller Pen Non-Dry Refill Safety Ceramic Roller 888 F 404. Fits the following Acme, Aldo Domani, Aurora, Bexly, Colibri, Conklin , Delta , Diplomat , Faber Castell , Hauser, Montegrappa, Monteverde , Omas , Parker , Pelikan , Retro 51 , Schmidt, Schneider, Sensa, Stipula, Visconti, Yafa