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