MAXIMIZE FIELD OF VISION: The wide-angle convex design allows you to see three lanes. The viewing angle is maximized and blind spots are effectively eliminated, enhancing safety without affecting normal driving. STABLE DESIGN: ABS anti-collision shell protects the mirror surface, offering greater durability compared to blind spot mirrors without a shell, reducing the need for frequent replacement. The blind spot mirror features 3M weatherproof adhesive for secure pressure-sensitive tape installation, helping prevent detachment. Note: The base of the blind spot mirror must be attached to a flat surface on the rearview mirror. If the top of your rearview mirror is curved, adhesion may be unstable. CURVED MIRROR DESIGN: Scientifically designed arc-shaped mirror surface can be freely adjusted to help eliminate blind spots. After installation, the mirror angle can still be adjusted up, down, left, and right. EASY TO USE: Clean the mounting area on the rearview mirror, then secure the mirror using the 3M adhesive. Adjust the angle as needed. Size: 4.33 x 1.77 x 1.57 in (110 x 45 x 40 mm). SAFE DRIVING: A practical accessory for various vehicles, including cars, trucks, SUVs, motorcycles, and RVs. Helps improve visibility for safer reversing and parking, suitable even for new drivers.