24 mixed pack of white and black prewound bobbins size L. Outside dimension is .826" and the width is .362". Center hole ID is 1/4". These are wound with approximatly 131 yards of thread. Benefits include parallel wind for smoother running, more usable yards per gross. Less waste = More yards, less down time, more production. No fuzz, lint, or wax buildup from paper bobbins. No distorted flanges from humidity or oiling. No jerks or jamming from distorted flanges.
Thread
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