ESTON 1 Pack 88 Printhead Replacement for 88 Print Head C9381A for Officejet Pro K5400 K5400dtn K5400dn K5400tn (Black/Yellow) Package include: 1 Pack Black-Yellow 88 Printhead For use with Officejet Pro K5400, K5400dtn, K5400dn K5400tn,K550,K550dtn, K550dtwn, K8600, K8600dn, L7550, L7580,L7590,L7650,L7680, L7750, L7780, L7500 All products in ESTON store are strictly tested to perform superb result before delivery, manufactured with ISO9001 ISO14001 certified ,good quality at a good price The nozzle of printhead with polished technology ensure high speed printing and ink flow smoothly Fast delivery, 100% satisfaction guaranteed and 0% risk of purchase, your purchase is covered y 1-year warranty.