


A crowd control barrier is a temporary barrier, often made of metal, used to manage and direct large groups of people, especially at public events or in areas where pedestrian
A convex mirror (also called a wide-angle mirror, or safety mirror) is a curved mirror where the reflective surface bulges outward toward the light source.
Traffic cones are placed on road to temporarily to redirect traffic, block of hazards, separation for construction project, road maintenance and automobile accidents.