Used in this video tutorial:. How to Do Pearl Knotting Using Tweezers. . You can't knot pearls without silk. And nothing hangs like silk cord, either. The thread comes with an attached needle that allows you to pass the cord through pearls, beads, and stones without having to double the cord over. Quantity: 1 package of size 4 bead cord, about 2 meters (six feet) in length, plus attached needle.