How to repair the tricycle billboard

Tricycle billboards are installed on the window glass behind the car body. Tricycle is a kind of transportation transformed from bicycle, which can carry people and goods. It was very popular after the 1930s, and gradually replaced the status of rickshaws. Tricycle is a combination of rickshaw and bicycle. Tricycle can be divided into human tricycles, electric tricycle, children's tricycle and battery car.