Refillable Cartridges for hp 934 935 with Auto Reset Chip compatible cartridges 934/935 BLACK/CYAN/MAGENTA/YELLOW For use with these printers Officejet 6812 6815 pro6230 pro6830 pro6835 Package include 1X EMPTY C refillable cartridge 1X EMPTY Y refillable cartridge 1X EMPTY M refillable cartridge 1X EMPTY BK refillable cartridge 4pcs free syringe&needles Installation instruction Features Never pay with these refillable cartridges for consumable cartridges $ aves over 95% compared to ink cartridges! Comes with latest version compatible permanent chips. All of our refillable ink cartridges and parts are brand new and professionally assembled. Easy installation: no professional skills, with our guide anyone can easily install Environmentally friendly: no need to change ink cartridge, can refill for many times, cost-effectively and environmentally friendly. Affordable and practical: the new CISS system solution can save you up to 95% in costs Friendly staff Complete accessories to help you with the installation Anti-corrosion PP material, works well with any kind of ink, dye ink, pigment ink, sublimation ink Please contact us prior to returning any products for authorization. CUSTOMER satisfaction IS OUR TOP PRIORITY!