Aluminum Retractable Banner for Stanchions, Length 1.0m/1.2m/1.5m for Option(BWL-075) This retractable banner is applied to the crowd control stanchions. It can effectively play the role of advertising and warning while controlling the flow of people. Moreover, the aluminum structure with high quality spring, ensure long-term use. Each banner comes with two stanchion caps. The user just need to put the …