Poly-Guide-Post delineators are used to warn,guide and delineate. Constructed of tough,weather-resistant high density polyethylenewith UV inhibitors. Posts stand 42" high(5 3/4" OD) and are mounted on a 10" squareHDPE plate with anchor slots. Hi-vis orange, limegreen and yellow posts feature 3" engineeringgradereflective silver bands for increasedvisibility at night and are MUTCD compliant.