Compatible for HP OfficeJet 6220, 6800, 6812, 6815, 6820, 6822, 6825, OfficeJet Pro 6230, 6830, 6835, 6836 printers. Package Contents: 1 x Black 934 XL, 1 x Cyan 935 XL, 1 x Magenta 935 XL, 1 x Yellow 935 XL (4 cartridges in total). Print More with XL: Up to 1,200 pages per XL Black, 825 pages per XL color cartridges (Cyan, Magenta, Yellow). Ink Level Tracking Technology: Smart Ink cartridges are equipped with smart chip that allows you to monitor current ink level and order a replacement pack in time. Easy to Install and Use: All compatible printers instantly recognize Smart Ink cartridges and work flawlessly. Specifications: Model Number: 934XL, 935XL Color: Black, Cyan, Magenta, Yellow Ink capacity: BK 58ml, C/M/Y 16ml With chip: Yes For use with printer: For HP Officejet 6812 e-All-in-One For HP Officejet Pro 6830 e-All-in-One For HP Officejet 6815 e-All-in-One For HP Officejet Pro 6835 e-All-in-One For HP Officejet Pro 6230 e-All-in-One Note: No retail package. Please allow 0–1 cm error due to manual measurement. Please ensure you are comfortable with this before purchasing. Due to differences between monitors, the image may not reflect the actual color of the item. Package includes: 4 x Ink Cartridge When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. The title and description provide detailed information about the product, including features and specifications. We want you to be completely satisfied with your purchase. If you have any questions or concerns, please . We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it.