YATUNINK 10 Pack 934XL 935XL Shows Accurate Ink Level HY Latest Version Ink Cartridge for OfficeJet Pro 6830 6820 6230 6812 6815 6835 Packing List: 4 Pack Black HY 934XL + 2 Pack Cyan HY 935XL + 2 Pack Magenta HY 935XL + 2 Pack Yellow HY 935XL Remanufactured Ink Cartridge (Non-OEM, The Latest Version) Page Yield: 1,000 pages per black cartridge & 850 pages per color cartridge Compatible with: OfficeJet Pro 6820 OfficeJet Pro 6830 OfficeJet Pro 6230 OfficeJet 6812 OfficeJet 6815 OfficeJet 6835 Printer. We Promise: All products covered by a 100% satisfaction guarantee and One Year warranty. If you have any question, please contact us directly, we will provide high quality after-sales service, to ensure the customer's shopping experience.