| Seraflex Thread 50wt 142yds 5ct Darkest Blue BOX05. Seraflex Thread 120 wt 142yds by Mettler. 5 spools per box. SERAFLEX is the perfect sewing thread for highly elastic seams. Due to its innovative raw material PTT (37% renewable raw material) an elongation of approx. 65% is achieved, making all seams highly elastic. SERAFLEX makes especially the straight stitch extremely stretchable, in the best case even a doubling of the seam elasticity can be achieved compared to seams with conventional sewing threads. Due to its extremely elastic properties SERAFLEX... - Seraflex Thread 50wt 142yds 5ct Darkest Blue BOX05. |