Safety is paramount in all that we do. In our industry especially, making it home safely to our families at the end of every work day is most important. Rooftop Supplies is here to help. Our warning line cone is a two-piece, stackable device used for OSHA rooftop safety compliance. These cones are lightweight, easy to transport, stackable, and will not leave rust marks on the roof. Plus, they are a fraction of the cost of similar metal roofing systems. Use with our pennant flagging for OSHA-compliant safety on all low-slope roofs. We have plenty in stock and ready for same day shipment. For more information, please visit our website at www.rooftopsupplies.com !