Ink Choice 1SET X for HP88 printhead C9381a C9382A For hp 88 K550 K5300 K5400 K8600 L7000 L7480 7550 7580 7680 L7710 L7750 L7780 PRINTHEAD One set include 2pk Colors : 1 Black/Yellow , 1 Magenta/Cyan Compatible printers:K550 K5400 K8600 L550 L580 L650 L7000 L7400 L7480 L7550 L7555 L7580 Ship from China usually need 5-12 daysneedn't wait for a monthplease don't worry. We stand behind every product we sell and offer a 100% satisfaction guarantee . Defective product can be exchanged or refund within 90 days.