Material: Pet PETG PC, Ply: 0.25mm/0.5mm/0.8mm/1.0mm etc There are 2 type of those products one is One-sided bright silver and bottom surface application of gum another is two-sided bright. Brightness is outstanding, the reflection and the illumination are extremely good and the clarity close mercury real mirror splendid. It's can be cut different ship according to custmoers requirments. This item also can be use in lamps and lanterns' counter-optical glass, strengthens lamps and lanterns' counter-luminosity, saves lamps and lanterns' energy consumption, enhances lamps and lanterns' brightness.