Model Name: MYCARTRIDGE Remanufactured Replacement for 901 XL 901XL Ink Cartridges Remanufactured ink cartridges refer to cartridges produced from recycled empty ink cartridges after disassembling, inspecting, cleaning, reassembling, refilling, and quality assurance testing to ensure optimal performance. Package Include: 1 X 901XL Black Ink Cartridges 1 X901 Standard Tri-Color Ink Cartridge LONG-TERM PRINTING: Page yields equal to OEM Ink cartridges Up to 600 Pages per Black cartridge (5% coverage) Up to 450 Pages per Tri-Color cartridge (5% coverage) Tips: The page yield is an estimation based on the industry standard of 5% coverage only. If you print more than 5% per page, then the page yield is significantly less. COMPATIBILITY PRINTER: OfficeJet Series J4680, J4580, J4550, J4540 J4500, 4500, J4660, J4680c G510a, J4660, J4524, J4624, J4640 USE INSTRUCTIONS: Step 1: Take off the protective cover Step 2: Tear off the plastic tape Step 3: Insert the cartridge into its correct slot Step 4: Make sure the cartridges snap into place