Maille or chainmail has become increasingly popular in recent years. Some artists make chainmail armor to use in staged battles. Others prefer to create chainmail jewelry and sculptures. The Expansion Chainmail Bracelet is another great example of a stylish piece of chainmail jewelry. This cuff is made up of chainmail and black rubber for expandability. Wear this fashionable piece and impress your friends. They will be sure to ask about it. Material: Aluminum, black rubber Gauge 14g Ring Size 10mm Size: One size Fits Most.