furniture hardware/sofa back hinge/sofa headrest mechanism Be used in sofa headrest or back,change their the angle Best seller Detailed Product Description 1.Description:a.Specification: 242*28*D3.5 b.Angle: 90°—198° ,4 gears,each tap position20°return angle 40° c.Material: Iron d.Finish: Platinge.Adhibition:Be used in back or headrest,change their the angle. 2.Advantage:a.High quality&Reasonable ...