Wordsworth & Black Fountain Pen Ink Refills - Set of 30 Assorted Colors Ink Cartridges - International Standard Size - Length APPR 2.04 Inch - Base Diameter APPR 0.24 Inch - Disposable and Generic

Wordsworth & Black Fountain Pen Ink Refills - Set of 30 Assorted Colors Ink Cartridges - International Standard Size - Length APPR 5.2 cm - Base Diameter APPR 0.6 cm - Disposable and Generic

25 x Standard Sized Universal Black Fountain Pen Ink Cartridge Refills

25 x Standard Sized Universal Blue Fountain Pen Ink Cartridge Refills