Roadside safety's Collapsible Cones come in several sizes; 18, 28 and 30 inches. They are being used all over the world to help on projects where cones are needed but space is minimal. They also come in a version that is not lighted.
The 18" collapsible cone's main function is to provide a cone while taking up less space than a traditional cone. These are usually not used on the freeway but are used in private parking areas or even soccer fields or for other events, They have reflective tape and also are available with a light in the bottom to increase visibility at night.
The 28" collapsible cone meets the minimum height set by the FHWY for cones that will be used on the Highway and Roads. It's main advatage is that it provides a cone while taking up less space then a traditional cone. These also come packed in individuals, sets of 4 in plastic case and set of 5 in durable orange canvas bag (see picture) The 5 pack was developed to meet the NFPA regulation that all new fire trucks must carry 5 28" cones. They have reflective tape and also are available with a light in the bottom to increase visibility at night.