This bobbin thread is recommended by Brother International as the preferred yarn for many of their domestic embroidery machines. Runs clean with minimal lint + is available in the popular class 15/A pre-wound bobbin that is compatible with so many of today’s domestic embroidery & sewing machines. This bobbin is wound on a clear flanged plastic bobbin that works in conjunction with thread sensors. Clear spun bobbins help balance needle thread tension while offering a high break strength with low elongation + shrinkage.