1100% Functional Test: The print head will undergo 100% functional test after production is completed, and 100% functional test will also be conducted before delivery to ensure product functionality. 2Stable Performance: High quality after sales products with stable performance and high reliability, suitable for replacing your damaged products. 3Premium Quality: Printing print head products are made of high quality PPE and PPS materials, safe and durable, and have a long service life. 4Durable: This print head is light in weight, rust proof material, and will not fade for a long time, can be used for a long time, durable. 5Easy Installation: The kit contains 1 print head without any accessories, without disassembly, it can be installed and used without harming the original machine.