INVISIBLE - The name says it all! SULKY INVISIBLE is a very fine, tear-resistant and transparent polyester monofilament thread. It is the ideal solution for embellishing fabrics with strings of sequins, cords or pearls. Use whenever the thread and seam should not be visible. However, there is a lot more to this great tear-resistant monofilament thread: When used as embroidery thread for large designs, SULKY INVISIBLE creates a stunning transparent look for exciting new embroidery effects.