About this item CORRIEDALE WOOL: The Corriedale sheep in Uruguay are raised without being subjected to the practice of mulesing or any other type of cruelty. The sheep live their lives happily grazing in the wide-open pastureland of Uruguay in South America. BEST WOOL FOR CRAFTS: 29.5 micron, staple length of 90 mm/3.5 inches. Corriedale wool is perfect for core wool, quick needle felting; wet felting; nice enough for use as a topcoat; soft and strong fiber for spinning; fluffy enough to use as stuffing. GERMAN PRECISION – Groz-Beckert of Germany is well known for making the best needles in the world for needle felting. High carbon steel means the needle is strong, and the smooth polished finish ensures precise felting and control of the wool fibers. THREE POPULAR SIZE NEEDLES – Included are 5 each of the three most popular size felting needles: 36 gauge star, 38 gauge star, and 40 gauge spiral/twist. Perfect for sculpting with wool, 3D felting, and 2D felting. Because of the high quality, these needles will outlast and outperform cheaper needles. COLOR CODED – Each size has its own color to make it easy to know which needle you need. The 36 gauge star (orange) is the largest needle and is used for quick felting, joining, or for course wool. The 38 gauge star (blue) is the medium size and is used for sculpting, details, and finer wools. The 40 gauge spiral/twist (green) is the smallest gauge and is used for fine details, fine wool, and finishing work.