Adjustable Butt Hinge: Two-dimensional adjustable hidden hinge, which can finely adjust the front and rear, up and down distances by using the hexagonal screws 110Lbs Load-bearing: Heavy duty concealed hinges made of aluminum alloy, strong and . The hinge can be used for inside door opening, outside door opening, left door opening, right door opening Ultra-Thin Hinges:The hidden door hinge adopts an ultra-thin design and only needs shallow grooves in the door, easy to install and door-friendly Dimensions:Hinges fitted to the door frame section: 4.3x1.5x0.5 Inch, Hinges mounted on door leaf section: 3.8x0.96x0.2 Inch.Perfect for the Door Thickness 1.5-2 Inch, Manufacturer: Akfldms