Compatible with: HP OfficeJet: 4500, G510a, G510g, G510n, J4524, J4525, J4535, J4540, J4550, J4580, J4585, J4624, J4660, J4680, J4680c, J4860 Professionally remanufactured by LD Products Page Yield* Per Cartridge: 200* For best results, store in a cool, dry place. Use within 18 months of purchase for optimal performance. *Average cartridge Page Yield* in accordance with ISO IEC 24711. *at 5% coverage (ISO/IEC standard) All LD compatible and remanufactured cartridges are quality tested to ensure long-lasting use and bold, vivid print on every page Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.