1、Compatible Models: The print head is compatible for hp office Jet for 8218 for 8216 for 8210 for 8200 for 8745 for 8740 for 8730 for 8728 for 8725 for 8720 for 8718 for 8716 for 8715 for 8710 for 8700 for 7740, please confirm whether it is suitable for you before purchasing printer 2、ABS Material: The print head housing is made of ABS, which is more wearable. There may be a small amount of ink remaining on the print head, which is normal and does not affect the use of the print head 3、Easy Installation: The printhead replacement does not need any accessories and disassembly, and can be installed and used directly without damaging the original machine. Be careful when installing the nozzle, be sure to cut off the power before putting it away 4、Rigorous Testing: The print head is tested before leaving the factory to ensure high performance output of each set of accessories 5、High Performance: The print head chip can identify ink cartridges faster, the print head ejects smoothly, protecting the printer, and prints clearly and brightly