The mirror is a smooth surface, and has the ability of reflex the light items. The most common is diagonal mirror, are often people use to arrange appearance. In science, the mirror are often used in and telescope, laser, industrial equipment and other instruments. There are rules of reflection properties with surface polishing metal devices and gold-plated of reflection film glass or metal products. Often laced with metal, plastic or wooden frame. Mirror points and a curved mirror can two kinds. A curved mirror and concave mirrors the convex mirror, the points. Mainly used for clothing mirror, furniture fittings, building decoration, optical instrument components and solar ovens, lamps, and the searchlight mirrors, reflex, telescope, auto rearview mirror etc. Glass mirror for 5 mm general, not toughened glass.