High Quality Material: The door hinge is made of high quality metal materials, and the surface is electroplated, which is not easy to rust and has a long service life. Sturdy, corrosion-resistant, oxidation-resistant, flexible and quiet. Seven-hole design: The seven-hole design of the T-hinge can evenly distribute the load, provide better support and achieve a smooth and quiet operation. Quantity and Size: Package includes 4 pieces 8 inch T-hinges with 28 Screws. Overall dimensions: 230 x 73 mm/9 x 3''. Width: 73mm/3'', Length: 200mm/8'', Thickness: 1.5mm/0.06'', Height: 30mm/1.18''. Sturdy: T-hinges is a mechanical bearing that connects two solid objects - your door and the door jamb - while providing smooth, frictionless operation of your door or gate. Wide Application: These T-shaped door hinges can be used on domestic garden doors, barn doors and even shed doors. These metal gate hinges can also be used on a range of different materials.