Cardboard tubes are so commonplace that we may no longer even notice them. Yet they are everywhere: in a roll of toilet paper, in the packaging of the college diploma, in fireworks, and in the tissue and paper industries. And now, more and more, they can be found in unusual places, such as on the walls of houses and buildings. The material is part of modern life and is being produced for a multitude of industrial applications and consumer products. The vast majority are used as structural cores in winding operations. Immediately after manufacturing, paper, film or textiles are rolled directly onto cardboard tubes resulting in a stable roll that is easily stored and transported.