About the product: 1. 360 Rotatable + 20 Angle Flexibility Adjustable- Based on this flexibility, you can adjust the product to easily find the right angle for you and expand your angle and vision, which helps you make safer driving changing lanes and back your car. 2. Square convex frameless mirror equip with Black adjustable base, upgraded more sticky 3M adhesive, Prevent glass cracking and splashing. 3. Newest upgrade: use better strengthened adhesives, firmly stick avoid the mirror fall. clean your car side mirror with alcohol or water, stick to the black pivot base and stick the blind spot mirror on your car side mirror. 4. Easy to install, Find the right position on the car's rearview mirror and remember, peel off the double-sided tape on the base and stick it in the before found position, press down hard when the mirror is stick to the black pivot base. 5. Size:6.4cm/2.5inch*4.6cm/1.8inch, fit for universal vehicles cars. Newest Upgrade: 1.use better strengthened adhesives. 2.firmly stick avoid the mirror fall. Features: 1.Square convex frameless mirror 2.Ultrathin slim design waterproof, rust resistant, suitable for interior or exterior use. 3.360 Rotates and adjustable, maximize your view with wide angle. 4.Easy install, fit for all universal vehicles car. Size:6.4cm/2.5inch*4.6cm/1.8inch Package include: 2 Pcs * Blind Spot Mirror