Delineator Base Product Type Delineator Base For Use With Product Type Portable Delineator Post Weight 15 lb Color Black Shape Hexagon Material Rubber Compatible with Series EZ Grab Width 17 3/4 in Includes 5 in Diameter Center Hole Inside Diameter 5 in Installation Method Slip-On Length 17 3/4 in Outside Diameter 17 3/4 in Height 2 in Standards MUTCD NCHRP-350