1Premium Materials: Made of ABS, it is safe and durable, and has a long service life. Tested in good working conditions.2Easy To Identify: This printhead can be recognized by your printer. Do not use a syringe to push, and do not use various cleaning fluids to fill the nozzle. This can cause crossed colors to appear inside the nozzle.3Easy To Use: Easy to use, easy to install and replace. Before installation, please make sure that the ink pump of the printer is working properly, and there is no problem with the ink cartridge or continuous ink supply.4Lightweight and Compact: Small, lightweight and easy to use. This product is the perfect replacement for an old printhead.5Applicable Scene: Suitable for HP Photosmart 7520 7510 7525 7515 C6340 D7560 C6350 printers.