Mylar films have replaced paper covering in most events. They eliminate any shrinkage due to humidity levels and are much easier to work with. They can be cut with a pencil soldering iron, avoiding framework cuts and unsightly trimming. Choose from the two most popular thicknesses. Ultrafilm is 1.4 microns thick, and is very strong. Super Ultrafilm is 0.9 micron and is just as easily applied. Both are excellent for Pennyplanes, Science Olympiad and F1L models.