Assortment of embroidery needles No. 5/10 for light fabrics such as poplin, voile or chiffon, and medium fabrics such as linen, twill or crepe. Pouch of 16 needles. Embroidery needles are used on weft and warp fabrics from the thickest to the thinnest for all types of traditional embroidery. They have a big eye that makes it possible to thread the cotton embroidery yarn (or yarns) through, which is thicker than a conventional sewing yarn.