Pre-wound bobbins are a type of sewing bobbin that has already been wound with thread. They are a convenient option for sewers who do not want to wind their own bobbins. Pre-wound bobbins are available in a variety of colors and sizes to fit a variety of sewing machines.
These pre-wound bobbins from Fil-Tec, Signature, Quilter's Select, Sulky and Superior will save you a lot of winding time.