ND R@ 4 x 250ml Pigment Ink Refill Kit for HP 934 934XL 935 XL: OfficeJet Pro 6230 Pro 6830 OfficeJet 6812 6815 Printers We do not offer yet the refill guide for 934 935 system! Please check the refill options of your printer before buying! The refill kit comes with 4 refill syringes and needles NOT GENERIC INKS! Top Quality. Big Save. Easy to Refill. Brand New. Manufacturer Sealed.