Greene feet are reusable, that's right…one pair will last and last and last. Made from super strong a rubber-like plastic (Polypropylene) they are weather proof, lightweight and very flexible. I put a loop of tape on the bottom and stick them down when I want my subject to stand and people automatically go over and stand on them. Now they are facing the right starting direction and I'm ready to fine tune…saving valuable time! Afterwards I pull them up, throw away the tape and they are ready for the next shoot.