Clearly identify your pedestrian crosswalks by adding these Slip-Gard Crosswalk Message Strip. Slip-Gard Crosswalk Message Strip: Pedestrian Crosswalk, 3"x48", Yellow and Black, self-adhesive backing, pebbled surface. AccuformNMC is a leading manufacturer of safety signs, tags, labels, and 5S organization supplies. In the world of manufacturing facility safety identification, we continue to rise to the challenge by creating innovative product solutions to create a culture committed to safety, from the front gate to the back dock. Through expertise and ingenuity, we're paving the future of facility safety identification one innovative product at a time.