... 4.High quality with competitive price 1. 50pcs Cartridges of fountain pen 2. material: plastic3. Ink color: black and blue4 ... and promotion and other use8. The Cartridges of fountain pen has been selling well in European and American markets ... glue stick, gel pen, correction items, tape, sharpener, scissors, highlighter, marker, glass paint, art set, paint set, compasses, school set, office items, ...