31""L X 4-3/4""W X 4-3/4""H HEAVY DUTY-ROUNDED-BLACK/YELLOW. FOR USE IN APPLICATIONS INCLUDING RESIDENTIAL TO COMMERCIAL AND MORE. MADE OF RUBBER FOR LONG LASTING DURABILITY AND DEPENDABILITY. UNITS PROVIDE HIGH IMPACT RESISTANCE FOR ENHANCED STRUCTURAL INTEGRITY IN HIGH-TRAFFIC AREAS. MOLDED REFLECTIVE TAPE IMPROVES DRIVER VISIBILITY. MAINTENANCE FREE CONSTRUCTION PROVIDES CHEMICAL WEATHER AND CORROSION RESISTANCE. INCLUDES MOUNTING HOLES FOR UNIT STABILITY. PERMANENT INSTALLATION HARDWARE SOLD SEPARATELY. FOR USE INDOOR/OUTDOOR. PACK OF 1.