Center pivot hinges made of stainless steel with maximum corrosion resistance and durability, brushed surface is not easy to rust,the hidden door center pivot hinges are made to provide reliable support. With unique roller ball design reduces friction and noise, these 360 degree rotating door pivot hinges provide a simple and effective way to swing the door easily and quietly. Solid rotation door hinge with heavy duty design and smooth bearings is nearly hidden from view. The swivel hinges sleek design with up and down link function allows for quick and easy installation. The rotation hidden door pivot hinge can be mounted on the top level the door and is attached to a hole on the surface of the door The rotating door hinges work wonderfully for swinging doors, kitchen cabinets, closet doors, interior doors, screens, cabinet doors and other aluminium doors.. Perfect door hinge replacement for your old or damaged ones. Package includes 8 pieces center pivot hinges 64pcs screws. Dimensions: 74 x 18 mm. Thickness: 2.5 mm. Hole size 5mm, Manufacturer: OTOTEC