Pc Mirror: High Refractive Index and Specific Light Density, Good Light Transmission, Not Easy to Deform, High Hardness, Does Not Pollute the Environment. Features: When Exposed to an External Force, the Lens is Concave, But after the External Force is Released, the Lens Returns to Its Original State. Nature: the Versatile Hat Effectively Protects the Sunlight and Rain Outdoors to Promote Clear Vision and Improve Driving Safety. 【Safety Mirrors】Convex mirrors can be used as traffic mirrors, outdoor or indoor, to increasing safety in driveways, parking lots and garages. Convex security mirrors, as surveillance and monitoring system to help improve security and offer great theft prevention. 【Wide use】Traffic mirror replacement parts are very suitable for parking lots, driveways, garages, warehouses, industries, offices, shops, and kiosks. Convex mirrors provide a wide-angle field of view and reduce the risk of accidents.