Manufacturer unknown - Unused! 9-inch headrest monitor set of 2

It has not been installed in a vehicle, but there are some light stains and dents in the fabric from storage. It has a 9-inch wide monitor and two video inputs. The color is beige, with a faux leather-like finish. The shaft spacing is 150 mm. The diameter is 10 mm (12 mm with adapter). As it is an overseas product, I checked its operation just in case. *It is not the type that covers the screen as shown on the package.