Youngdale hinges are for overlay doors and for 3/8" partial inset doors. When the door is closed they are almost completely concealed. Only the pivot point of the hinge is exposed. They are an excellent alternative to European hinges and are much easier to install. Youngdale hinges work on both face frame and frameless cabinets. There are currently eight different Youngdale hinges, each with an identifying number. When replacing Youngdale hinges, look for the number that is stamped on your hinge to determine which hinge you need. All Youngdale hinges are proudly made in the United States of America.