They are usually made of copper wire or lead wire, and have never seen iron wire. Because the actor should adjust this wire properly before wearing his mouth, so that his cheeks will not fall off and his mouth will be covered. If it is a wire nest, it is easy to break, and the most important thing is that the shaping effect is poor, which is not as good as copper wire or lead wire.

Copper wire is not soft, copper wire is three or four millimeters thick, it will not be soft and will not fall off.