We offer the possibility of plating the keys either with Black Nickel or Black Chrome. It gives the keys the same color as the body. This is a purely optical effect without any influence on the sound. It looks very special and requires special attention whenever we work with these keys, since imperfections will be easily visible. Since nickel as well as chrome can cause allergies, we offer an additional lacquer coating, which will prevent the player from having any direct contact with the nickel or chrome.