The knot button is widely used in the traditional garments of China. They are usually made of cords woven from cotton, although certain intricate patterns and designs would require the use of metal wires.
Knot buttons come in a dazzling array of varieties, ranging from plain and simple straight knots to elaborate flowery knots. However, generally speaking, the two major groups are distinguished on the basis of utility and ornament.
Recent years have seen a flourishing of knot buttons in contemporary clothing. Knot buttons of various shapes and sizes are being used on different types of garments. Each pattern of knot button has a picturesque name representing its image. Among the most popular designs are butterflies, rosebuds, and diagonal cross-weaving. Used on different garments, knot buttons convey the spirit and temperament of different eras.