381 XL Gray 1.5 times the standard capacity Compatible ink cartridge for Canon printers. Not a genuine product. I am using other colors and have been using them for years without any problems. (There were some reviews on the purchase site that the ink was slightly thin. I don't mind, but I think it's better not to use it for printing important documents.) Since it is a compatible product, please purchase if you are not concerned about minor details. [Using Regular Mail] No tracking, takes 3-7 days to arrive. If you are concerned, I will change to Mercari delivery for an additional 100 yen. Printer Printer Ink cartridge Compatible ink cartridge Compatible ink