The Trail Marking Tacks from Allen are perfect for hunting, camping, or hiking, or marking important spots, these white faced tacks can be seen day or night. They are highly reflective tacks that can be seen for up to 200 yards so you dont have to worry about getting lost in the dark in the woods again. Easily push into a tree or the ground with your thumb, and the nearly 1/2 face stands out you can even leave these tacks on your trail season after season.