Material: The hidden door hinge is made of high quality stainless steel, which is corrosion resistant, does not rust and has a strong load capacity. This ensures a long service life and durability. 360 DeGREE FLIP: for folding windows, doors and cabinets. Flexible and durable, strong bearing capacity. The hollow hole design does not stand out, is porous, fixed and does not move Dimensions: distance between mounting holes: 25mm. Total dimensions: 100mm x 32mm. Mounting hole diameter: 5.2mm. Plate thickness: 3mm (each plate)Wide application: suitable for wooden doors, cupboard doors, tool boxes and other aluminum doorsEasy installation: up and down function, easy to install. Content : 6 hingesScrews not included Note: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference, there will be a some color difference, depending on the physical item received.