INKMATE Replacement Lexmark 23 24 Ink Cartridge 1 Black 1 Color For Lexmark X3430 X3530 X3550 X4530 1.Package includes: 1 x Lexmark 23 +1 x Lexmark 24 Ink Cartridge. 2.Type: Lexmark. 3.Compatible with: Lexmark X3430 / Lexmark X3530 / Lexmark X3550 / Lexmark X4530 / Lexmark X4550 / Lexmark X4500 / Lexmark Z1410 / Lexmark Z1420. 4.Quality Assurance: Every cartridge is methodically tested by our team to ensure that you can print hassle-free. 5.Our vows: we can provide a guarantee to every customers who purchased our products, once there are any problems, we will make all our efforts to help you and if you don't want to posses it , we can offer you the full refund.