Enable greater indoor crowd control management for staff, employees, and clients throughout your facility. The Magnetic Retractable Belt Barrier is designed to inform, guide, and prevent access to specific areas. Once connected with a compatible receiver, business owners or personnel can easily mark off locations within their business to designate traffic, block off access, or isolate areas. Attach mount and belt end to any ferrous metallic surface. Enlarged message on 30' yellow nylon belt reads: CAUTION - DO NOT ENTER.