The universal application of the curve or with a sharp knife (for example, cutters) or scissors cut the universal curve on its outer line, with a margin of about 2 cm on. Then divide the curve into the curve segments required for your project. To facilitate adjusted cutting radii, is the universal curve pack a model. By combining these segments with each other and incorporating pieces of straight road, you get all the services you want from the road. Each pack contains two universal curves, so you can build with one pack a full circle (360 °).