Magna-Glide Delights Style M Bobbins White 40wt 132yd (10)

Filament Polyester . Fil-Tec Bobbin central's patented magnetic core creates consistent delivery through the entire bobbin. No more interruptions for tension adjustments as your bobbin gets smaller. Magnetic core prevents backlash or over-spin and eliminates the need for backlash springs. Magna-Glide is the original high-yield magnetic-core bobbins. These are Style M Bobbins. There are 10 Per pack Recommended Needle Size: 65/9, 4.0 Longarm Made of: Polyester Recommended Use: Bobbin thread Thread Weight: Trilobal 40wt Length: 132yd