How to put a slogan on the opaque glass behind the car?

In this case, you must not stick it on the inside. If you stick it on the outside, you need to use a plastic film, otherwise it will get wet and rotten if it rains.

The rear glass of the car must be transparent. When it rains, the rearview mirrors on both sides cannot clearly see the situation behind the car. The rearview mirrors inside the car can clearly see the rear of the car. situation, so it is recommended to replace the rearview mirror with a transparent one. Safety! ! !