Door Hinges - Concealed Hinges For Doors - Hidden Door Bookshelf And Door - Side Mount - 360 Degree Rotating Axis The pivot hinge, the secret door, the hidden door, the shelf door, the cabinet door, the panel door, the wine cellar door, the cabinet door, design and create by yourself - Even the unexpected door opening in the movie with this hinge set This The pivot hinge set is mounted on the top and bottom hinges of the door and the frame to open the door by rotating it around its axis. The weight of the door is supported by the sturdy hinge bearing at the bottom and the floor. Installation note, must be installed by professionals, and design the door and door frame forward, pay attention to the gap between the door and the door frame so as not to block the rotation. The hinges must be pre-installed in the door frame, door and floor to embed the hinges. The package includes: upper door frame hinge, upper sector hinge, lower sector hinge, floor hinge, screw, guide .