The National Marker Company sign is designed to inform motorists about a speed bump. It is mostly used to ensure that the motorists drive safely and slow down at required locations for safety reasons. The legend ?CAUTION ? SPEED BUMP? is printed in legible and bold text to ensure better visibility even from a distance. The rectangular sign is UV resistant, chemical resistant and graffiti proof. The sign has NMC Sign Muscle coating to protect the text against fading, scratches, scuffing, mold, and moisture.