Model: Compatible DELL 21/22/23/24 Ink Cartridges Package: 5x Dell Series 21 Black ink, 3x Dell 21/22/23/24 Color ink 100% compatible with: DELL V313 / V313W / V515W / P513W / P713W / V715W?Instructions for use: (Find More Details in Instruction Manual in your package) Step 1: Remove the Yellow Label from the top cover carefully. Step 2: Take off the protective nozzle cap. Step 3: Tear off the protective nozzle membrane if any. WARM TIPS: PLEASE IGNORE PROMPTS TO UPDATE FIRMWARE/SOFTWARE TO ENSURE THESE CARTRIDGES ARE NOT REJECTED BY YOUR PRINTER.