Trim Line Base, Product Type Channelizer Base, For Use With Product Type Looper Top Channelizer Cones, Weight 10 lb, Color Black, Shape Square, Material Rubber, Compatible with Series Grip N Go, Width 15 1/4 in, Includes 8 in Diameter Center Hole, Inside Diameter 8 in, Installation Method Slip-On, Length 17 in, Height 1 in