Features: 1Compatible Models: The printhead is compatible with HP Deskjet for 3070 for 3520 for 5525 for 4620 for 5520 for 5510 for 4615 printers. 2Easy Installation: The kit includes 1 printhead, which can be installed and used without any accessories and disassembly, without damaging the original machine. Be careful when installing the nozzle, make sure to turn off the power before putting it away. 3High Performance: The printhead chip can identify ink cartridges faster, the printhead outputs smoothly, protects the printer, and prints clearly and brightly. 4ABS Material: The printhead housing is made of ABS, which is more wear-resistant. There may be a small amount of ink remaining on the printhead, which is normal and does not affect the use of the printhead. 5Function Test: The printhead test is performed before leaving the factory to ensure the performance of each set of accessories. Manual assembly line machine testing ensures high performance of printheads. Item Type: Printhead Replacement Material: ABS Scope of Application: For HP Deskjet for 3070 for 3520 for 5525 for 4620 for 5520 for 5510 for 4615 Printers Package Includes: 1 x Printhead