This 12-piece set of 28" traffic cones is designed for traffic control, parking areas, construction sites, schools, and roadside emergencies. Made from flexible PVC, the cones are built to handle moisture, oil, temperature extremes, and heavy use. Each cone features reflective collars for enhanced visibility in day, night, and poor weather conditions. The weighted base helps keep the cones stable in outdoor environments. Their stackable design also makes storage and transport easier.