It is mainly made of anti-static (conductive) materials and static-dissipative materials such as synthetic rubber. The surface layer is a static dissipative layer about 0.5 mm thick, and the bottom layer is a conductive layer about 1.5 mm thick.
Commonly used as 2mm double-layer composite structure, available colors are green, gray, blue, black, white and so on.
According to the structure, there are two types: whole body and compound; according to the surface brightness, there are two types: bright type and matte type.