Warning Pad, Yes, Installation Method Surface Applied, Installation Surface Concrete, Material Polymer, Length 4 ft, Width 2 ft, Thickness 7/16 in, Color Yellow, Weight 10 lb, Surface Installation Method Drive Pins & Sealant, Includes Drive Pins, Masonry Bit, Sealant, Includes Installation Hardware Yes, Dome Spacing 2.35 in, Replaceable Yes, Series TT2448, Standards ADAAG, CA Title 24, PROWAG, Surface Design Truncated Domes