Between the knuckles of these door hinges ball bearings reduce the friction. These ball bearings help the hinges withstand the wear and tear caused by the weight of heavier and wider doors. Designed by Australian Manufacturer, Tradco Hardware, to complement their range of antique copper door handles, these hinges are made of copper-plated brass and hand aged for a luxurious living finish. Each one comes with the antique copper screws included for easy installation.