PilotTokyo, JapanBrand · Paper goods12 Pack Ink Cartridges$5.49 – $6.50Stocked at 3Choosing KeepingLondon, United KingdomRetailer · Stationery shop$5.95Lighthouse Paper Co.Melbourne, FLRetailer · Stationery shop$5.49Noteworthy Paper & PressMissoula, MTBrand · Retailer · Stationery shop$6.50