Check the listing for details. 2Pcs 360 Degree Rotating Pivot Hinges, 57 x 16.3mm Concealed Hinge, Black. Condition: New. Listed at 16.76 USD. Description:Material - 360 degree pivot door hinges are made of stainless steel, waterproof, rustproof, corrosion-resistant, not easy to fade, with the advantages of durability and long-term use.Design - The door hinge has a strong load-bearing capacity, can rotate 360 degrees, operates quietly and allows the door to be opened and closed smoothly. Solid rotation door hinge with heavy duty design and smooth bearings is nearly hidden from view.Installation - The center pivot hinge is easy to install. There are mounting holes on each hinge to ensure that the hinge is tight after installation and not easy to fall off. The rotating hidden door pivot hinge can be installed on the top layer of the door and fixed on a hole on the door surface.