A set of 12 spools of thread. The thickness of the thread is approximately 1.5mm, measured by an amateur. These belonged to my grandmother, who was a kumihimo (braided cord) instructor, so they are probably silk, but I don't know the exact material, intended use, or other details. Please check the photos. The color descriptions in the title are insufficient, so please confirm the colors in the photos. The threads seem tangled, as you can see in the photos, and I will send them as they are. I cannot guarantee that they are not tangled. Please feel free to contact me if you have any questions.