The Adjustable Perth Series of professional hinge are pre-set to accommodate 10 mm thick glass. Adjustable to accommodate the desired angle (up to 90 degrees) is done after the door is installed. The gaskets are glued into the hinge, promoting rapid installation. Composed of solid brass, the spring will self-center within 25 degrees of the closed position and will open both inwards and outwards. The hardware is available in three standard finishes - Chrome, Brushed Nickel and Matt Black. The door can swing 90 degrees inward and 90 degrees outward (adjusting angle from factory set position will reduce the 90 degree swing in that direction).