A class of it's own. MADEIRA Classic thread is the worldwide number one. In 413 fabulous shades, including ombré tone on tone and multi colours, there is no better choice. This standard size 40 embroidery thread is ideal for most designs. Made from 100% viscose rayon, it is the choice for embroidery on high speed multi-head machines as well as industrial sewing machines. Classic No. 40... known worldwide for high tensile strength and excellent glossy luster.