A set of 40 cones of 500 meter (550 yards) of machine embroidery polyester thread. This style of spools will fit in all major embroidery/sewing machines including the older Brother cartridge style. This set includes 40 Vivid colors of our popular embroidery thread colors as pictured. 40wt. A white snap-style thread holder is include on each mini-king cone. It holds the end of the thread in place during storage to prevent unraveling and tangles. Vivid Set - This extension set called our Vivid set will really extend your range of pink/red and green shades of thread. A good set to add for holiday and nature embroidery work. Unopened