Classic 40 Colour Box – Grey Box of 10 x 1000m cops. Featuring colours 1011, 1040, 1041, 1086, 1118, 1164, 1241, 1286, 1318 and 1361. This standard size 40 embroidery thread is ideal for most designs.  Made from 100% viscose rayon, Classic No. 40 is known worldwide for high tensile strength and excellent glossy luster. For best results use a #65/9 or #75/11 needle.