2 Pack ink4work Black Replacement HY Ink Cartridge for HP 934XL for use with OfficeJet 6812, 6815, officeJet Pro 6230, 6830, 6835 (2 x Black) For use with: OfficeJet 6812, 6815, officeJet Pro 6230, 6830, 6835 ISO9001 certified. Not made by HP Content: 2 x Black Ink cartridge Sold by ink4work only