[Lock Hinge 180 Degree Sturdy Structure]The 180 degree locking hinge is made of high quality thickened zinc alloy, thick material, leaf table hinge is operated by solid sliding bearing steel balls and middle brass parts mixer, the folding hinge locking table hinge saves space, The 90-degree self-locking folding hinge is and the 180-degree adjustable hinge keeps you worry-free. [180 Degree Hinge Adjustable Positioning]Our locking hinge has an adjustable positioning design, the adjustable locking hinge torque hinge, and the upper and lower flap doors can be adjusted to 0 degrees, 90 degrees, 135 degrees, 180 degrees by adjusting the locking hinge screws. Degree and four other different angles, the locking hinge 90 degrees is flexible and practical. [Adjustable 180-degree hinge and easy to install] Adjustable 180-degree hinge positioning, use screws to fix the limit hinge of the flip table top tightly, small wooden box hinge small hinge is simple and convenient to install, 180-degree