Sophia Global High Yield Compatible Ink Cartridge Replacement for Canon CLI-251XL (1 Gray) Designed to Provide Equivalent Print Yield as Original Brand Name Cartridges Two Year Shelf Life and Manufacturer Warranty ISO 9001 and ISO 14001 Quality Certified Manufacturing Process Quick and Easy Installation; this cartridge comes with a chip and is engineered to snap right in, light up, and be recognized in your printer High Quality Prints; this ink is formulated to provide excellent color matching for vivid photos and crisp text