GEAR: 7 Position Sofa Bed Headrest Adjustable Angle Mechanism Hinge, with One Angle BracketMATERIAL: metal, anti-rust and corrosion-resistant, durable and sturdy to use, not easy to bend and break.APPLICATION: Suitable for adjusting Sofa backrest Bed Headrest Backrest or you can DIY for your own furniture.FEATURE: Lifting Rod Desk Desktop Adjusting Hinge Angle Hinge.NOTE: Mounting screws are not included.Product Name: Adjustable Angle HingeMain Color: Bronze ToneWeight: 1022gDimension: 19 x 5 x 7cm / 7.5-inch x 2-inchx 2.8-inch (L x W x H)(Folded)Thickness: 4mm / 0.16-inchAdjustable: 7 GearMounting Hole Diameter: 8mm / 0.31-inch, 5mm / 0.2-inchPlate Size: 6 x 5 x 0.3cm / 2.4-inch x 2-inch x 0.1-inch(L x W x T)Package Content: 2 Pair x Adjustable Angle HingeOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.