Parker Quink Mini Permanent Ink Fountain Pen Refill Catridges, 12 Purple Ink Refills (S0881690) Parker refill cartridges are fitted with "ink reserves" ready to be released with a tap when a writer starts running on empty Cartridge keeps ink contained so replacing it is a clean process Permanent ink lays down smoothly, dries fast and won`t smear Parker Quink ink mini cartridges are suitable for use with all Parker fountain pens 12 Purple Ink Refills