Canon PGI-270XL Pigment Black Twin Pack, Compatible to MG7720,MG6820,MG5720, TS9020, TS6020, TS5020 The pigment black ink formulation gives you rich, dark, black text XL Ink Tanks can help save you money, print more when you need it, and extend the time between replacing ink tanks Smart LED lets you know when the inks are properly installed and which tank needs to be replaced For quality and precision use Genuine Canon Ink with Canon Printers