Whether you are directing traffic through a work zone, or helping children across the street in front of a school, having a stop sign/paddle is a tool that helps you keep pedestrians and motorists safe. These signs are 18" x 18" so they will easily be seen by all who travel by roadways. Perfect for traffic guards at cross walks or bus stops. Made of abs plastic, non reflective sign sheeting, meets MUTCD standards, 6" letters.