Black 6 Inch Invisible Hidden Door Hinges for Heavy Duty Doors

What You Get: Two hidden hinges with needed hardware, made of zinc alloy and aluminum alloy, the maximum load is 40KG/88lb(two hinges). 3D Adjustable Range: Up and down ± 3.0mm, left and right ± 2.0mm, forward and backward ± 1.0mm. Specific Size: Please kindly check the image of the product, we've already marked the size on the picture. Suitable for Multiple Doors: Your can install this kind of hinges on wood doors, swing doors, fire doors, smoke-proof doors, aluminum alloy doors and many other doors. Door thickness need be at least 35mm, and door width need be less than 850mm.