Schmetz Double Eye Needle has two eyes, one above the other.
This allows you to run two regular sewing threads through the eyes, which will give you a heavy top stitch look.
By varying the thread colors, decorative stitching may be accomplished with added interest. The special construction of the Double Eye needle is for topstitching decorative seams with decorative threads and embroidery.
Size 80/12, 5 needles/card.