Strong and Durable: Constructed of heavy-duty stainless steel with maximum corrosion resistance and durability, these invisible pivot hinges are designed to provide reliable support for years to come.Convenient and Invisible: Featuring a unique ball mechanism, these 360-degree swivel hinges offer a smooth, quiet, and efficient way to operate your door. The solid swing door hinge has a sturdy design with nearly invisible smooth bearings.Easy Installation: The sleek design with an up-and-down linking feature allows for quick and easy installation. This invisible swing door hinge can be mounted at the top of the door and attached to a hole on the door surface.Various Uses: These invisible swing door hinges are suitable for a wide range of applications, including swing doors, kitchen cabinets, closet doors, casement windows, and more. Ideal as a replacement for old or damaged hinges.Buy with Confidence: With a compact design and solid construction, these rotary hinges provide a sleek and functional addition to your door.