Traffic cones keep workers and work area safer by temporarily redirecting traffic to effectively control the site and the road. MDI Traffic Control offers the highest quality traffic cones in two styles: Illuminated Collapsible Traffic Cones and Standard Slimline Traffic Cones. Both styles feature two high-intensity reflective bands for exceptional daytime and nighttime visibility. They have square bases to prevent rolling if cone is knocked over, and are anti-skid to hold cone in place. NCHRP 350 and MUTCD approved.