Package Contains (Compatible) : 6 Pack of compatible ink cartridges replacement for HP 564XL 564 XL ink cartridges. (2 x Cyan, 2 x Magenta, 2 x Yellow) Printer Compatibility : B611a, B611b, B611c, Deskjet 3520, 3521, 3522, 3526 Officejet 4610, 4612, 4620, 4622 Photosmart 5510, 5512, 5514, 5515, 5520, 5522, 5525, 6510, 6512, 6520 6525, 7510, 7515, 7520, 7525, C5324, C5370, C5373, C5380, C5383 C5388, C5390, C5393, C6324, C6340, C6350, C6375, C6380, C6383, C6388 D5460, D5463, D5468, D7560, B010a, B010b, C510a, B209a, B210a B210b, B210c, B210d, B210e, C309g, C310a, C310b, C310c, C309a, C410a C410b, C410e, C309n, Pro B8550, Pro B8553,B110c WhyChoose Us : ? High Page Yield: 564XL 564 XL (Black) is 800 pages per cartridge. 564XL 564 XL (Cyan/Magenta/Yellow) is 750 pages per cartridge. ( at 5% coverage ) ? Easy to Install: 1. Remove the PULL tape 2.Install into the printer Do not touch the chip during installation. ? High Performance: Premium Quality Ink delivers high-quality Vivid Color and sharp text, high Performance Results. ? High Quality Control: 100% printer test for each ink cartridge to ensure fullworking condition and a superior print quality. ? 100% Compatibility: Adopting the lastest smart chips. Shows accurate ink level. Printer Recognition without problems. ? Excellent Price: Competitive price, Environment friendly, Less waste. ? Firm Packaging? Packaging Protection keeps products away from possibility ofdamage during transportation and ensure your product arrive safely. ?Tips: 1. Please clean the printing head before printing. 2. If the cartridges do not be recognized by your printer: (1) Please remove the cartridges and turn off your printer. Wait about 30 seconds and turn your printer back on. (2) Re-install the cartridges again and make sure all cartridges are individually well locked in.