Superior Titanium-coated Topstitch #70/10. Guaranteed to last 5-8 times longer than regular needles. Pack of 5. Recommended for sewing with very fine threads. Since these new needles have an ultra thin coating of titanium nitride they will stay sharper longer. Topstitch needles have a larger eye and a deeper groove. Use for quilting, embroidery & applique with very fine threads.