Rugged HDPE impact & UV resistant guidepost/delineator post with an internal zinc-coated spring. Withstands impacts at speeds of up to 60mph while maintaining 360 degrees of flexibility. Fits a variety of turn-and-lock base options. 40" x 4" wide and 1/8" thick with a durable ribbed design. Includes glass filled 4 3/4" square base and concrete anchors.