Features: Safety Mirror When the Lens is Exposed to an External Force, It is Concave, But after the External Force is Released, the Lens Returns to Its Original State. Pc Mirror: Safety Mirror High Refractive Index and Specific Weight of Light, Good Light Transmission, Not Easy to Deform, High Hardness, No Pollution. Visibility: Convex Mirrors Are Designed to Be a Circular Metaphor of up to 130 Degrees Intersection, Intersection, Memory Layout and Other Visibility of the Most Difficult to Monitor Areas. Material: Convex Mirror the Use of Orange-Red, Technically Perfect Abs with Bright Color is Bright and Eye-Catching, with a Good Warning Effect. Safe Design: Wide Angle Mirror Monitoring Helps Prevent Vandalism and Theft at Corners and Blind Spots, and Increases Safety for Pedestrians and Workers.