The 2022 Diamine Inkvent Calendar comes with 25 bespoke fountain pen inks, one for each day for the winter countdown! The ink set comes in a creative box with numbers and popout panels found on any advent calendar. These fountain pen inks are unique and cannot be found anywhere else in Diamine's existing ink selection. Each color has been created for the calendar and are ideal for fountain pen use. Included are twenty-four, 12ml bottles and one 30ml bottle.