Madeira Prewound Bobbins. Art. 9766

Prewound Bobbins No. 150 Art. 9766 Black Box of 50 bobbins of 120 m ea. (131 yds) 100 %  Polyester filament Prewound bobbins eliminate the need to wind down underthreads. Simply insert in bobbin case and off you go! The bobbins are wound at such a tension that there is always an optimum 120 m (131 yds) on each bobbin. So a maximum of two bobbins run for the same length of time as a 200m spool (220 yds) of Rayon No. 40. What is more, downtime for bobbin changes is minimized.  For more efficiency on prewound bobbins – MADEIRA has the solution. Madeira prewound bobbins are paper sided 8mm width Ø 21 mm (0,315” width Ø 0,826”)