【 Product Features】: 1. Installed on the interior rearview mirror; 2. This product is a Curved mirror, which is different from the original rear-view mirror in visual distance. It can improve the visual range, help solve the problem of dead angle in driving, and drive safely. 【 Usage 】: 1. There are two installation methods for this product: A and B; 2. Can be installed on original rearview mirrors with a height of 48-84mm; 3. Installation method A: First, place the protruding and stretchable feet on the back of the main body under the original rearview mirror, facing upwards as a whole. Press the main body onto the original rearview mirror while pulling upwards until the other two feet are fixed above the original rearview mirror; 4. Installation method B: First, place the protruding and stretchable feet on the back of the main body above the original rearview mirror, while pressing the main body onto the original rearview mirror, and then pull down until the other two feet are fixed below the original rearview mirror; 【 Installation Requirements】: 1. The height of the original rearview mirror is between 48~84mm; 2. The width of A is above 165mm; 3. There should be a gap of over 5mm above the rearview mirror; 4. The width of B is below 65mm. 【 Precautions 】: 1. If this product is installed, a rearview mirror with a dash cam cannot be installed; 2. Depending on the vehicle model and installation location, there may be vibrations; 3. Do not press hard on the mirror surface to prevent it from cracking.