INKWAY INK, To print Better Image with Less Money.Principle:We offer great print quality and reliable performance for fast, professional printing quality. Inferior products are firmly rejected.Printer Compatibility: For use with Canon MG6820 MG6821 MG6822 MG5720 MG5721 MG5722 MG7720 TS5020 TS6020 printers. ,Works with ALL printers that use PGI-270 CLI-271 ink cartridgesContent:For PGI-270 CLI-271 Refillable Ink Cartridge 1 Set (Five Color) .If you have already purchased our product and got any problems ,please feel free to contact us:Sign in your Amazon account ? Find your 'INKWAY order' and click contact seller, then email us.We will try our best to solve it.