HP Officejet Pro Print Head Nozzle Replacement Parts - 950 951 for 8100, 8600, 8610, 8620, 8650, 251DW, 251 Printers WalkbeeFeatures: 1Easy Installation: This printhead kit contains only one printhead, no other accessories or extra tools are needed, just push the printhead to complete the installation, saving time. 2Material: The shell is made of high quality ABS, wear resistant, and has been tested many times to ensure the printhead performance and keep your printer running smoothly. 3High Performance: Upgrade 950 print head chip, identify ink cartridges faster, print head ink jets smoothly, protect the printer, print clear and colorful. 4Applicability: Compatible with for hp office Jet 8100 8600 8610 8620 8650 251DW 251. 5Note: Be careful when installing the nozzle, be sure to