The main body is made of 201 stainless steel, with a thickness of 1.0mm. It is resistant to UV exposure and will not fade for 3 years of outdoor use. There is a 0.8m persuasive equipment cabinet inside (to store traffic flags and whistles), and 4 reflective vest hooks are installed on the side for easy access. Traffic warning signs (such as "Slow down" and "Give way to pedestrians") are posted on the outside, and a small warning light (can flash) is added on the top; the size (length × width × height) is 1.6 × 1.4 × 2.3m, suitable for school intersections and community entrances.