Page Yield*: 6,500 pages Compatible with HP 711 Black Ink (per cartridge) *at 5% coverage (ISO/IEC standard) Package Contents: 4 x 711 Black compatible ink cartridge CZ129A Compatible with HP DesignJet: T120, T125, T130, T520, T525 24In, T525 36In, T530 24In, T530 36In Product name: 711 Black Cyan, Magenta, Yellow Ink cartridge Inkpod pack compatible replacement for HP 711 Ink cartridges 711 Professional compatible replacements manufactured by LD Products. HP is a registered trademark of HP and is not affiliated with and does not endorse LD Products.