3D soft close auto hinges are a type of concealed hinges that have a 3D adjustment feature for height, depth, and side. They are also hydraulic and clip-on, and have a sleek design. They are made of steel and have a nickel finish. They have different crank sizes, such as 0°, 8°, or 16°, to adjust the opening angle of the door. They are suitable for wooden doors, aluminum profiled doors, or glass doors.