6 inch Hidden Door Hinges（2Pcs - Invisible Hinges for Doors, 180 Degree Swing Concealed Hinges, 3 Way Adjustable & Heavy Duty Hinges (Black)

Very strong hidden hinge. I love it. It's completely hidden and you can't tell it's there or it opens it up can make the seams small enough, or blend it enough. It looks great. Very easy to install. No need to cut or dig into the door, or the door frames. Works awesome.

These hinges are just what I needed. The design is well done and they are sturdy. Easy to install as well.

Hidden door hinge is 6 x 2.5 x 1 inch, perfect for the door with the following dimensions: thickness > 35mm, width<850mm. Two hinges together can support up to170 pounds and provide a 180-degree opening angle. The invisible door hinge can be hidden totally with closed door. When door is open, they are elegant and stylish. Heavy quality and nice design. Recommend.

These hidden hinges are great for a smooth and modern look. This particular hung is large and very robust, good for a heavier application. I like the black finish it works with my theme however you can get multiple types of finish. I got them to replace a smaller hinge same design. The larger ones will take the weight better. However after installing them I ran into the same problem with the small hinges. That is the door and wall are to thick and the door will not open sufficiently due to the dry wall that was installed after the hinges were placed. Even with all the adjustments designed into this hinge I still couldn’t get them to work with a 5/8 overhang. Be mindful and you will have better luck then me. In conclusion the hinges work great with the proper application.

The door certainly feels heavy duty, and it has a 170 lb load capacity which holds my aging (and heavy) wooden door pretty well. The assembly was easy and the build is pretty nice. I opted for the normal orientation, but you're free to go up down or left and right.