This is a set of 10 boxes, each containing 12 red ink cartridges for Pilot's "Neo Marker" pens. I'm selling these because I bought too many. These are new and unused, but please understand that they have been stored at home. - Color: Red - Quantity: 12 cartridges x 10 boxes - Model: IRF-12S-R - Application: Cartridge ink - Retail price: 440 yen x 10 = 4,400 yen Price is not negotiable. Fountain pen, spare-type sign pen, quick-drying, water-based pen Kumon, Gakken, teachers, cram schools