Sturdy and Durable: Concealed center pivot hinges are made of heavy-duty stainless steel for maximum corrosion resistance and durability, designed to provide reliable support for years to come. Convenient and Invisible: The unique design of these 360 degree rolling door pivot hinges provides a simple and effective way to turn your door easily and quietly. Heavy duty hinges for swing doors feature a sturdy design and smooth, virtually invisible bearings. Easy to Install: The elegant design features an up and down linkage function for quick and easy installation. Rotating hidden door pivot hinges can be installed on the top of the door and fixed to the holes in the door surface. Wide Range of Applications: Concealed swing door hinges are ideal for swing doors, kitchen cabinets and more, cabinet doors, hinged windows and more. Perfect replacement for old or damaged door hinges. BUY WITH CONFIDENCE: These swing door pivot hinges feature a compact design and sturdy construction, making