A simple yet elegant and clever way to keep keys in order. Developed together with traditional Japanese stone craftsmen, this key holder is very easy to use and thanks to the combination of brass and mineral has a wonderful natural feel. It earns its patina over time and becomes more and more unique. Individually made from natural material, each piece varies in color and pattern. The oils from hands and fingers will condition the mineral and the color will become deeper. The same for the metal, which may darken or change overtime.