SEW PRO 63 Brother Colors Polyester Embroidery Machine Thread Set | 40 weight 500 meters (550 yards) | Double Snap Spools COMPATIBILITY  will work on virtually all brands of embroidery machines (i.e. Brother, Babylock, Bernina, Janome, Singer) VALUE  63 colors that match Brother colors; 40 weight; 550 yard (500 meter) spools of 100% polyester embroidery thread CONVENIENCE  double snap spools that keep thread from unwinding TOP QUALITY  durable, high shine RACK IS NOT INCLUDED