The Chinese Knotting Cord offered here is fine braided nylon cord with a center core to enhance strength and form. The cord comes in many sizes and colors. This very popular, luxurious braided cord is very strong and pliable and holds knots very well, which is why it works so well for Chinese Knotting. It has a beautiful look and sheen. Large amounts are conveniently spooled to prevent tangles. We do coil very small amounts as we do our other satin cords.