The keys are frequently produced from an alloy called German silver. This is crafted from copper, zinc, and nickel. It looks like pure silver, but does not tarnish. Some fine gadgets may be made with pure silver keys, and dear models are available with gold plated keys. The key pads require cardboard and felt or leather. The reed is crafted from cane. Other parts utilized in the clarinet are cork and wax, for lining the joints, and a metal similar to silver or a less expensive alloy for the ligature, the screw clip that holds the reed in place, and stainless steel for the spring mechanisms that work the keys. 5 Early clarinets were made with hand forged keys. The modern method is typically die casting. Molten alloy customarily German silver is forced under pressure into steel dies. A group of attached keys may be made in one piece in this method.