Electrostatic adsorption installation will not leave any residual glue. The hotter the weather, the better the adsorption. It is suitable for car windows in any position, especially the front door windows, which can avoid obstructing the rearview mirror's line of sight. When lowering the car window, be sure to remove the sunshade mesh to prevent the risk of it being pulled into the car door by the descending window. The mesh color is very dark, which can block direct glare. It can be hand-washed lightly, but do not use a brush on the adsorption surface.