This delineator post comes with 2-3" engineer grade reflective sheeting and an 8 lb base. It is made of durable polylethylene and available in two sizes: 42" and 28". It has a 4” Flange on bottom which grabs base for a tight fit with 6” diameter at the bottom. The delineators are very quick to set up and can be purchased with or without reflective bands. Meets NCHRP and MUTCD Standards