Cotton Qlt 40wt 3000yd VICTORIAN ROSE. Signature 40wt. , 3-ply. 100% mercerized cotton thread is the perfect choice for those preferring cotton through and through. With excellent sewability at high-speeds, this thread performs well on both long arm and home quilting machines. The merceri... - Cotton Qlt 40wt 3000yd VICTORIAN ROSE.