When you want both convenience and quality, Sulky's prewound bobbin thread, on a plastic-sided bobbin, is a 60 Wt., continuous filament, polyester thread that is virtually lint free. It is the perfect weight in the bobbin for most every sewing, quilting, or embroidery project. "L" Style Tubes have a BLUE label on the tube and they contain 5 bobbins with 91 yds. per bobbin.

Before using Sulky Prewound Bobbins, check your machine's specific bobbin for compatibility.

Here is a downloadable Prewound Bobbin Compatibility PDF. >>