1. Made of high quality zinc alloy materials, good abrasion resistance, long service life, high hardness, wear resistance, corrosion resistance. 2. Smooth surface and good feeling. Rounded edge, fits perfectly in your folding table and the holes are aligned. 3. Release the friction resistance of the switch door lock, achieve the quiet effect, stronger and more durable. 4. Strong, soft, simple, more service life, no hole opening, easy installation. Is a good helper in life and work. 5. Suitable for many surfaces such as computer desk, sewing machine, windows, doors and folding table etc. Product 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 body. The sophisticated appearance enhances its beauty. Features Colorsilver Size30 x 78mm Materialzinc alloy Package Included3 x Folding Table Hinges