This Cone Stands 40 1/2" tall, Bright green color is difficult to miss. This sign alerts people to a potentially hazardous areas or restrict zones. With Keyholes on either side of the cone, it is possible to create barriers for an even bigger coverage area using chains or barricades. The Rugged plastic prevents chipping and cracking, even in the outdoors. The cone has a wide base which adds stability and stacks easy for storage.