Fil-Tec Inc is a proud USA manufacturer of sewing threads and pre-wound bobbins. Features & Benefits Produced from the same high tenacity polyester yarn as Magna-Glide, Clear-Glide, and Supra-Glide, Bobbin Line is great bobbin thread for embroidery. Smooth, uniform thread surface provides optimum tension control in your bobbins and offers the flexibility to use this product as a top thread as well.
|The magnetic-core creates consistent delivery throughout the entire bobbin.
|No more interruptions for tension adjustments as your bobbin gets smaller
|Magnetic-core prevents backlash or over spin & eliminates the need for backlash springs
|Each bobbin has 135 yards of continuous polyester filament thread
|Contains 100 white bobbins per box
Fil-Tec's M/Jumbo patented magnetic-core creates consistent delivery throughout the entire bobbin.