These soft close cabinet hinges are nickel plated. They are used extensively in the fitting of kitchen and bedroom cabinet doors. Often referred to a Blum hinges. One hinge leaf has a 35mm diameter boss which is morticed into the inside of the door and secured with 2 screws and the other leaf is mounted on the inside of the cupboard with fully adjustable mounting plates. This allows easy and precise adjustment after fitting. Being sprung it pulls the door fully closed without the need of a catch.