Green Toner Supply&trade; Compatible Ink Cartridge Replacement for HP 920XL (1 Black, 1 Cyan, 1 Yellow, 1 Magenta, 4-Pack) Green Toner Supply offers LIFETIME WARRANTY against manufacture defects Green Toner Supply offers 2 Years Money Back Guarantee on Manufacture Defects Black Print Yield: Up to 1,200 Pages at 5% Coverage ; Color Print Yield: Up to 700 Pages at 5% Coverage Green Toner Supply Compatible Ink Cartridge Replacement for HP 920XL works with the following machines: HP Officejet 6000 Wireless Printer - E609n, HP Officejet 6000 Printer - E609a, HP Officejet 6500 All-in-One Printer - E709a, HP Officejet 6500 Wireless All- Green Toner Supply cartridges were professionally manufactured in an ISO 9002 factory