These are an assorted mix of coloured calligraphy ink from Manuscript that come in a pack of 12 total. You will find 4 x Black, 4 x Blue and 4 x Sepia giving you plenty of classic colours to create beautiful calligraphy. They are ideal for topping up fountain pens with a mixture of colours depending on your preference meaning your pen will never run out anytime soon. Manuscript fountain pens will be a perfect fit with these cartridges however they can be used with the vast amount of standard fountain or cartridge pens available. - Brand: Manuscript - 12 Assorted colours: 4 x Black, 4 x Blue, 4 x Sepia - Ideal for topping up fountain or cartridge pens with ink - Greats ink for calligraphy