General description Concealed rotating door hinges are ideal for a variety of applications, including revolving doors, swinging doors, kitchen doors, cabinets, closet doors, flap windows, wooden doors, and aluminum frame doors. These hinges serve as a perfect replacement for old or damaged hinges, providing a durable and functional solution. Technical specifications Material: Copper and solid steel ball Rotation: 360 degrees Wear-resistant and deformation-resistant Usage Suitable for hidden doors, rotating screens, hidden storage cabinet doors, and wardrobe doors.