Our Concealed Hinges manufactured by SOSS are top of the line in the category. These invisible hinges can be used in both hollow and solid core doors. They are made of high quality materials and construction. Each hinge is specifically designed and made to uphold extensive use. We offer a variety of finishes and concealed hinge types for all of your needs. These hinges are extremely versatile and have been installed in places like the White House, Buckingham Palace, and a variety of hotels, commercial properties and private residences.