Polyester Embroidery Thread Set - 40 Large Spools (1000 meter spools/40 wt.) - Set D Brilliant Colors 40 large cones of polyester machine embroidery thread from ThreadArt. There is 1000 meters (1100 yards) on each mini-king cone. Four different sets. Collect them all, there are no duplicate colors. This thread is 40 weight, the standard for machine embroidery. The set comes packaged in a white box as pictured suitable for gifting. Individual spools are shrink wrapped. A blue 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.