JARBO Remanufactured HP 901XL Ink Cartridge High Yield 1 Black 1 Tri-color 2 Pack with Ink Level Display Used in HP Officejet 4500 J4500 J4524 J4540 J4540 J4550 J4580 J4624 J4640 J4660 J4680 Use with complete compatibility and ink level display High-quality ink, print with crisp text, up to 700 pages per black cartridge, up to 360 pages per color(5% coverage) Worked in HP Officejet 4500 Officejet J4500 Officejet J4524 Officejet J4540 Officejet J4550 Officejet J4580 Officejet J4624 Officejet J4640 Officejet J4660 Officejet J4680 Officejet J4680c ISO-9001 and MSDS certificate approved. All JARBO brand products are backed by 2 years money back guarantee, which covers any quality, reliability and performance issues We strive for the perfection of printing, only for the comfort in your life.