The ink cartridges are short international size, suitable for all Kaweco fountain pens Pack of 60 cartridges (10 boxes total) one box of each ink colour: Caramel Brown, Midnight Blue, Palm Green, Paradise Blue, Pearl Black, Royal Blue, Ruby Red, Smoky Grey, Summer Purple, Sunrise Orange Can be used with Caran d'Ache, Coles, Conklin, Diplomat, Faber-Castell, Graf von Faber-Castell, Hugo Boss, Kaweco, Laban, Ohto, Online, Otto Hutt, Visconti, Waterman, Worther & Yard-O-Led fountain pens Cartridge capacity 0.7ml Diameter - 7.0mm .
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