Premium Material: Folding hinge is made of quality zinc alloy, has smooth surface, wear resistant, and has high hardness, providing durability and robustness Easy to Install: The silver butler tray hinge is designed for easy installation without the need for drilling, making it a convenient choice for your folding tables and hole alignment Quiet to Use: 180 degree heavy duty flip hinge with fine workmanship, provides a slow and smooth movement when opening and closing, ensuring a noiseless use Furniture Hardware: The round edge folding table hinge is perfectly suited for your folding tables, making it a versatile addition to your furniture Widely Used: 180 degree folding flip hinge is suitable for various surfaces such as folding furniture, sewing machinecomputer tables, sewing machines, coffee tables, doors, and windows, etc Specification: Material: Zinc Alloy Size Chart: M:LxW:5.8cmx3.7cm/2.28inchx1.46inch L:LxW:6.5cmx4cm/2.56inchx1.57inch Package Includes: 2x Door Hinges Note: Please allow slightly errors due to manual measurement and different monitors.