Thornton's ink cartridges have a neutral PH, excellent coverage, smooth flow, on top of the most vibrant colors their ink does not clog your pen and is a fast drying one. The standard cartridges fit almost every cartridge/converter fountain pen on the market. The 12-pack features a plastic reclosable case that will help preserve the life of the unused cartridges. Ink colors includes: 2 Black, 2 Blue, Red, Green, Yellow, Brown, Orange, Violet, Turquoise, Pink.
These ink cartridges work with the following pens: Acme, Ancora, Bexley, Bosserrt & Erhard, Caran d'Ache, Cartier, Colibri, Conklin, Conway Stewart, DaniTrio, Daniel Hetcher, David Oscarson, Delta, Diplomat, Dunhill, Elysee, Faber Castell, Inoxcrom, Itoya, Jean Pierre Lepine, Jorg Hysek, Kaweco, Krone, Latex, Libelle, Lominchay, Marlen, Michel Perchin, MontBlanc, Montegrappa, Monteverde, Nemosine, Nettuno, Northpointe, OMAS, Osmiroid, Pelikan, Recife, Reform, Retro 51, Rotring, Schmidt, Schneider, Sensa, Sheaffer, Signum, S.T. Dupont, Stipula, Stypen, Taccia, Tombow, Underwood, Visconti, Waterford, Waterman and Yard-O-Led.