Be Green Ink Eco Series compatible HP OfficeJet Pro 6979 Toner is the best option for your HP OfficeJet Pro 6979 printer because you can count on exceptional quality at an affordable price. Be Green Ink Eco Series compatible HP OfficeJet Pro 6979 Toner 902XL(T6M14AN,T6M02AN,T6M06AN,T6M10AN)Cartridge High Yield 4 Pack Savings is made in an ISO 9001/14001 certified manufacturing facility and is tested prior to packaging to ensure that the print quality is the same as the original brand. Be confident knowing that when you purchase a BGI Eco Series compatible HP OfficeJet Pro 6979 Toner you are getting a very high quality compatible cartridge that will perform at the same level as an original cartridge, but at a fraction of the cost.