CJ Safety 28" Black Base Safety Cones are made from premium grade PVC, impact resistant, solid yet flexible; sturdy and durable. Brilliant fluorescent orange color with Dual 3M Reflective Collars (6" & 4") assure 360 degree visibility. Heavy duty rubber base (14" x 14" x "2) withstands windy condition. Manufactured according to MUTCD & NCHRP 350 Specifications. Great for traffic control, crowd control, construction sites and hazard markings for trucks, schools, churches and municipalities.