Strong Bearing Capacity: This three-dimensional cross hinge slab is upgraded and thickened, which improves the bearing capacity of the hinge and prevents the hinge from breaking due to excessive force. Large bearing capacity up to 35kg. High-quality Zinc Alloy Material:Made of high quality zinc alloy, anti-rust and corrosion-resistant, durable and sturdy to use, which can ensure the quality and service life of the hinge. In addition, the thickened siding of the hinge improves the load-bearing capacity of the hinge and prevents the occurrence of fractures caused by excessive force. Opening & Closing Silently: The inside of the hinge uses a roller track design, opening and closing silently, without noise. And the overall structure of the hinge hinge is stable, durable and not easy to loosen, which can ensure the safety of you and your family. WIDE APPLICATIONS: The concealed cross hinges work wonderfully for revolving door, swinging doors, kitchen door, cabinets, closet doors, flip windows, wooden doors, aluminum frame doors,and so much more. Perfect door hinge replacement for your old or damaged ones.