High-Quality Materials: High-Quality Zinc Alloy, Anti-Corrosion Coating, Stable And Durable, No Deformation, Non-Toxic And Tasteless, Not Easy To Rust, It Does Not Harm People'S Daily Body.Design: 180-Degree Rotation, No Sharp Round Birch Edges, Elegant Appearance, Sturdy Structure, Superior Bearing Capacity, Durable.Dimensions: 29.5 Mm X 78.6 Mm / 1.16 X 3.09 Inches And A Thickness Of 2.2 Mm / 0.8 Inches. Ideal For Folding Tables, Opening And Closing Becomes Very Smooth And Easy.Long Service Life: No Need To Open, Easy To Install, Long Service Life, Can Withstand More Than 50,000 Openings And Closings. It Slowly Pulls The Table Surface And Closes It For Smooth And Quiet Movements.Widely Used: Suitable For Many Surfaces Such As Computer Tables, Sewing Machines, Windows, Doors And Folding Tables And Other Furniture Accessories.Product DescriptionsDescription:1. This Item Slowly Pulls The Table Surface And Then Closes It In A Smooth And Quiet Motion.2. Strong, Soft, Easy To Stretch, Open And Close Life Of More Than 50,000 Times, Very Reliable. The Refined Appearance Enhances Its Beauty.3. Ideal For Connecting Folding Tables, Sewing Machines, Desks, Dining Tables And Cabinets, Repairing Jewelry Boxes, Making Models, Making Storage Boxes And Other General Uses Around Your Home And Shop.Specifications:Material: Zinc AlloyColor: SilverDimension: 29.5Mm 78.6Mm / 1.16 3.09Inch, Thickness: 2.2Mm / 0.8InchPackage Includes:4 X Tray Hinges24 X ScrewsNote:Due To Manual Measurement, Please Allow 1-3Cm Error And Make Sure You Do Not Mind Before Ordering.