Generic Notebook LCD Hinges Right & Left Set For Samsung NP900X4B NP900X4C NP900X4D Series Replacement Parts CompatibilityThis replacement left and right laptop hinges set compatible with Samsung NP900X4B NP900X4C NP900X4D Series Quality ItemAll items are TESTED rigorously before shipping WarrantyComes with a 9-month worry-freeWarrantyexcept the man-made improper operation, if you have any pre-sale or after-sale questions please feel free to contact us, we will be happy to assist you WarningNo instructions manual included. Easy to install. What You GetA Brand New Working Left and Right Laptop Hinges Set