Laundry Basket Quilts DecoBob Prewound BobbinsEach reusable bobbin is wound with DecoBob 80wt cottonized polyester thread by WonderFil. Pairable with any top thread, these bobbins ensure consistent tension and flatter seams in all your projects. The bobbins are wound perfectly even, resulting in consistent stitches and even tension when sewing. Come factory wound with a much higher density of thread than when wound on a domestic sewing machine, meaning the bobbin lasts much longer. Manufactured