Bidirectional Channelizing Marker - Box of 10 Markers Size: Approx. 13" x 7 1/2" x 2 1/2" Reflex area: Approx. 4.8 square inches per side Material: Meeting federal standards Housing: Acrylonitrile butadiene styrene (ABS) Reflector: Methyl methacrylate (Acrylic) Standard color: Amber $249.95 RT-90 3" Round Center Mount Delineator