Make sure your message is seen by all with the help of this Danger Flag. This 3 mil polypropylene danger flags for the Do-it-yourself-er has the right stuff to get the job done! Conveniently this product comes in rolls of 1000 18 inches flags, perforated and unprinted. Since it’s sold without print, this handy tool is perfect for a wide variety of events like community days or outdoor concerts!