Hinge stops every 90 degrees. For luggage, tool boxes, etc. [Features] Hinges that open and close while pressing the arrow rear. At that point, it will stop once in 3 stages of 0°, 90°, and 180°. Press and move the lead bar to move again. In the direction of the opening, there are 3 stages that are slightly extra open. Please note that it will not stop at 0 degree/90 degree/180 degrees. When attaching to a hard wood material, please drill a hole before mounting.