Package: 8 x Pivot Door Hinges (without screws). Material: Stainless steel hinge, rustproof and durable. Size: 57 x 16mm, Thickness: 1.5mm, Mounting Hole Diameter: 5mm; rod diameter: 7mm. Easy to install: The hinge has an upper and lower structure, the lower part is fixed to the ground, the upper part is fixed to the door, and the door rotates around the central axis, the installation will become easy and quick. Applications: Concealed rotating door hinges are suitable for interior doors, screens, invisible doors, wooden doors, revolving doors, alloy doors, cabinet doors, creative screens, etc. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.