Canon 5-Color XL Ink Cartridge Set High Capacity - Model: Canon 350, 351 - Colors: Black, Cyan, Magenta, Yellow, Gray - Type: XL - Quantity: 5-color set - Compatibility: For Canon printers Thank you for viewing. I realized my mistake after opening and installing the Y and C cartridges, as the printer wouldn't recognize them. I was planning to buy the 380 series, but I bought this series instead. The Y and C cartridges have been opened, but are unused. Thank you. Regarding the 380 series, I have a GY cartridge that I don't need because I bought a 6-color set for a printer that only uses 5 colors. It is unused.