Material: High quality ABS shell, sturdy and durable, effectively protect the mirror. Rear auxiliary mirror adhesive sticking firmly, no glue peeling, not afraid of wind and rain. The glass mirror is made of real material, the mirror is made in one molding, high definition without defects. Double Mirror: This car auxiliary mirror is based on the characteristics of the car's field of vision, by the two small mirrors according to a certain angle combination, can see the front and rear wheels of the car at the same time, greatly facilitate the reversing, U-turns, etc., driving more at ease. Installation: Tear off the protective film on the back of the rearview mirror, snap the mirror into the lower edge of the rearview mirror, then push it inward and snap it firmly. Finally, adjust the angle of the rearview mirror until you can see the front and rear wheels at the same time. Wide Field of Vision: Double mirror design, rotating base, the mirror can be adjusted 360 to improve the field of vision by 80%, which greatly reduces the blind spot of vision, avoiding or reducing accidents such as tail chasing, cutting, and mutual collision with the rear car. Safety Improvement: With this car rearview mirror, you can have a better driving vision, convenient for you to check the road conditions, reduce the occurrence of accidents, increase driving safety, protect your car, protect yourself and others.