Pronounced boo-Clay, this uniquely knotted thread is made with a 2 ply base with two other plies looping in and out making it a 4 ply thread. It comes 10.5 yards (10 meters) per skein. This highly textured thread is ideal for making stitches with dimensional effects. Although it may appear to be a difficult and unruly thread to work with, it is actually quite tame and easy to use. Rayon is the key to its ease of use and satin finish. Available in all Edmar colors.