This is a set of 0.38mm refills for the Frixion Ball multi-color pen. Out of the three refills in the set, 1-2 have been used, but the refills themselves are unused. Black x 4 Blue x 3 Red x 2 Total 9 refills The regular price is 100 yen per refill. I started using pens that don't erase, so I no longer need these. Some have been opened, but for those who don't mind. *0.5mm refills are also available. If you purchase them together, I will discount the shipping cost, so please message me.