Speedball Fountain Pen Ink Cartridges Set Black, Pack Of 10 Disposable Ink Cartridges, For Calligraphy Pen, Dip Pens, Handwriting Pens, Ink Refills, Artist, Calligraphers, Hobbyists

The ink is very dense, then has to be monitored at the nib fairly closely. If a fountain pen is left uncapped for a period of time in excess of 5 or 6 minutes, the ink flow is entirely different than the last stroke taken. If you are working with this pen rather than writing a letter this particular factor can be annoying. Otherwise, the ink colour density is excellent.

Great quality

The two nib sizes give two thickness options for everyday writing with a fountain pen. The pens' width makes for a comfortable grip, and the ink flows well. Excellent pens for Italic handwriting for a reasonable price. Thank you!

I got this to go in my speedball calligraphy pen and they are to runny. I now use them with the Mont Marte Calligraphy Set, 33 Piece and they work amazing.

I use this to ink my comic book art borders. I like it!