Mighty Line Stop Watch For Pedestrians Floor Sign. Mighty Line Stop watch for pedestrians floor signs are great at keeping your facility safe. Mighty Line floor signs are heavy duty and industrial grade. Mighty Line Floor Marking red 'Stop' sign with black border. Mighty Line safety floor signs are a great floor marking tool. Mighty Line floor signs are perfect solutions for 5s facilities, lean operations, and for warehouse safety. Part Number STPWFP24 - 24' Stop Watch For Pedestrians Floor Sign UPC -  815035013440 Made in the USA