Concealed Hinges can be also called invisible hinges. They are called this because the hinges are hidden from view when the cabinet flap or door is in a closed position. Sugatsune's Concealed Hinges come in several types for a variety of different applications. Sugatsune's HES3D product line is a 3 way adjustable concealed hinge series, and also received the Good Design Award. They are available in Stainless Steel, Zinc Ally, and Brass. They come in many different finishes including Nickel, Polished, Chrome, Satin Chrome/Nickel, Black, Gold, and more.