Gear: 7 Position Sofa Headrest Adjustable Angle Mechanism Hinge, with angle support. Material: Metal, anti-rust and corrosion resistant, durable and sturdy to use, not easy to bend and break. Application: Suitable for adjusting sofa backrest backrest or you can DIY for your own furniture. Feature: Lifting rods desk adjustment hinge angle hinge. Note: Mounting screws are not included. Gear: 7 Position Sofa Bed Adjustable Angle Mechanism Adjustable Angle Hinge, with angle support. Material: Metal, anti-rust and corrosion resistant, durable and sturdy to use, not easy to bend and break. Application: Suitable for adjusting sofa backrest backrest or you can DIY for your own furniture. You can DIY for your own furniture. Feature: Lifting Desk Rods Hinge Angle Adjustment. Note: Mounting screws are not included. Product Name: Adjustable Angle Hinge Main Color: Bronze Tone Weight: 511g Dimension: 19 x 5 x 7cm / 7.5-inch x 2-Inchx 2.8-inch (L*W*H) (folded) Thickness: 4mm / 0.16-inch Adjustable: