sofa hinge, sofa headrest, sofa function hinge It can be ajusted different level, different angle, it is easy to installed sofa hinge, sofa headrest, sofa function hingeIt can be ajusted different level, different angle, it is easy to installedDetail decriptions1.iron material2.zin finish3.sofa hinge4.100pcs/carton furniture sofa hinge with high quality