Product Description: Installation instructions are crucial for these magnetic curtains, which attach to the car door frame and do not fall off. Assembly is straightforward - simply open the car door and place the sun shades on the window frame; the magnet will snap into place automatically. The front windows' sun shades are tapered, ensuring unobstructed side mirror visibility. For correct installation, please note that you must open the car doors and then apply the sun shades to the window. You can find a clear demonstration of the product's use by searching 'Magnetic Sunshades for Car' on YouTube. If you have any further questions or concerns about this product, feel free to contact us through Amazon's Buyer-Seller Message Service.