Here at Ink Guru, we sell high capacity, long lasting MFP M140w cartridges so you get more ink inside for less money. When you buy our Ink Guru MFP M140w cartridges, you pay less per page! Don't forget that with longer lasting cartridges you'll be buying less cartridges, which helps protect our environment 🌍 These cartridges are guaranteed to replace your MFP M140w ink, or we promise to give you your money back.