This is a mini bottle size from the iroshizuku Kiryuku series of fountain pen ink that has 24 colorful colors that have been developed based on the motif of "beautiful scenery of Japan". We have trouble with the normal size of 1.7 fl oz (50 ml) is too large to use, but if it has a capacity of 0.5 fl oz (15 ml), it is a size that is easy to use and easy to use. Fountain pen ink can be changed freely with a converter, so you can enjoy the color of your fountain pen depending on the season or mood ... Every 3 pieces including different colors will be shipped in an exclusive case.