In fact, all STIHL trimmer line is made with pride in America at our state-of-the-art manufacturing facility in Virginia Beach, VA. With a custom blend of polymers, STIHL produces several types of trimmer line, each designed for a different type of cutting application. Why different types? Because not all cutting jobs are the same – we make different diameters and shapes of cutting line to accommodate the wide range of cutting scenarios you might find in your landscape.