Americas & Americas Yellow Assembly Line Flag with Magnetic Base and Flexible Flag Pole Yellow Assembly Line Flag with Magnetic Base. Total length 11 inches and weighs only 6 oz, base dimensions 2 inches. Flag size 4" x 6" quick dry polyester material. Easily removable so it can be washed and re-used. Zinc coated rubber base bottom will not rust or scratch surface. Tested and certified for up to 40 mph. Flexible steel spring pole. Popular for assembly lines and safety awareness.