Long-term printing: Page yields equal to OEM ink cartridges Up to 480 pages per Black cartridge (5% coverage Up to 300 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: Desktop 1111, 1112, 2130, 2131, 2132, 2133 HP desktop 2134, 2136, 2134, 2136, 3634, 3632 desktop 3633, 3630, 3631, 3635, 3636, 3637 Envy series: 4520, 4516, 4510, 4511, 4512, 4513, 4516 4517, 4523, 4524, 4525, 4526, 4527, 4528 OfficeJet series: 4650, 3830, 3831, 3832, 3833, 3834, 4650 4652, 4654, 4655, 4656, 4657, 4658 bring reliable performance for practically project. Get laser-quality documents with crisp text. Dry fast, resist water, prints maintain a sharp look over time. Packaging: You do not worry about extra leaked ink damaging Package. Every cartridge was protected in an individual sealed plastic bag.