An OSHA-compliant Marker Flag is essential for perimeter marking on any above-ground construction site, flat roof projects, and open upper-level construction areas. Each Perimeter Marker measures 105 feet in length and exceeds the OSHA-required 500 lb break strength, ensuring reliable safety boundaries. Available in Safety Yellow, the markers provide clear, high-visibility warnings. Each 105' strand has 42 durable flags measuring 12" x 18". Perimeter Marker Cones/Stanchions are available separately which support the installation of these safety markers, providing a complete and compliant perimeter marking solution for elevated work zones.