Machine artists have discovered how the "large-eye" of this specialty needle allows for the easy flow of metallic and rayon threads. It is perfect for machine embroidery threads and comes in 4 sizes to adjust to the weight of the fabric. Five needles per pack. Sizes 70, 80, 90, 100 and 110. These are the needles I use for all my machine embroidery. They slip through the fabric magically and easily accommodate the thicker textured threads.