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 smooth and quiet operation. Quantity and Size: The package includes 4 pieces 8 inch T hinges. Total dimensions: 230 x 73 mm/9 x 3''. Width: 73mm/3'', Length: 200mm/8'', Thickness: 1.5mm/0.06'', Height: 30mm/1.18''. Heavy Duty: T-hinges is a mechanical bearing that connects two solid objects - your door and the door jamb - while providing smooth, friction-free operation of your door or gate. Wide Application: These T-hinges can be used on home garden gates, barn doors and even shed doors. These metal gate hinges can also be used on a range of different materials.