Box of 100 Schneider ink cartridges with royal blue, erasable ink for a fountain pen. These ink cartridges have an international standard format with a ball cap and are therefore also suitable for fountain pens from many other brands, but not for Parker, for example.

The international standard ink cartridges are used by Acme, Bexley, Conway Stewart, Delta, Diplomat, Ducati, Faber-Castell, Ferrari da Varese, Graf von Faber-Castell, Jean Pierre Lépine, Marlen, Montblanc, Omas, Pelikan, Schneider, Signum, Stipula, Visconti and Waldmann.

The international standard ink cartridges are not suitable for fountain pens from Aurora, Cross, Lamy, Parker, Pilot, Sheaffer and Waterman (with the exception of Waterman Audace, Ici et La and Lady).