The HME Trail Marking Ribbon is 150' long environmentally safe and photo degradable. We have also added a heavy-duty heat seal to both sides of the ribbon. This will absolutely prevent the ribbon from unraveling during use or when storing in your pocket or backpack. Don't even dare drop the competitions or you will have an awful mess. You could juggle it roll it like a ball or throw it in the air and the ribbon will not unravel!