Edge 1: Heavy duty edge for large, bulky pills. It is best for use on wools and wool/synthetic blends.
Edge 2: For medium-to-large pills. It is best for use on 100% synthetics and blends, such as acrylic, rayon, polyester and fleece; natural fibers such as cotton, cashmere and merino wools.
Edge 3: Fine, delicate pills and fabrics. It is best for use on silk blends, fine cotton, natural and synthetic blends with elastane, viscose/rayon, nylon and Spandex™.