A4 vertical bulletin board with strap, black, A4 vertical

Support design: exquisite workmanship, simple and precise design, practical and convenient to use, suitable for retractable belts, safety barriers, queuing columns, and crowd control barriers. Commercial pole-mounted portrait support: easy to use, simple panel installation, offering great convenience and saving you considerable time and energy. Airport pole-mounted design: multifunctional and practical, suitable for various occasions, airports, train stations, exhibition halls, and public places. Commercial top panel frame: this panel installation can be used vertically in A4 format. Commercial top panel support: simple structure, reasonable design, classic color, appropriate size, can be easily matched with different decoration styles, suitable for different occasions.