90 day warranty on manufacturing defects. Shelf Life exceeds 18 Months. PrintOxe (TM) 5 ink cartridges compatible with HP 564XL; 2 Black, 1 Magenta, 1 Cyan, and 1 Yellow. For compatible HP models with 4 ink cartridge slots (Without Photo Black) Manufactured with highest quality and standards by an ISO, REACH, & CE certified factory with XL Chip to ensure best performance. Excellent printing quality and page yield. Product is backed with 100% satisfaction guarantee
Important: When installing 564XL cartridge (either OEM, Compatible, or Remanufactured) take off the Yellow tab (label) marked "Pull" BEFORE twisting the Orange cap. This allows air in the cartridge to vent then no ink is spilled/dropped. This sequence in important.