INKUTEN &copy; 5 HP Officejet 6210 Ink Cartridges Combo Pack (Compatible) Cartridges are manufactured in an internationally certified ISO 9002 factory and come with a 100% 365 day money back guarantee and technical support. 100% satisfaction or your money back INKUTEN is the exclusive seller of toner refill kits, Inkjet Cartridges, Toner Cartridges, and Drum Units INKUTEN offers free technical support for any questions you may have 800 Page Each Black, 450 Page Each Color Page Yield