12445 MAGNETC SIDELESS BOBBIN M

Fil-Tec's M/Jumbo patented 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 per box. Available in white and black. Madeira Elite Bobbins Continuous filament Magnetic-core Sideless Pre-wound Polyester Style M White 230yards per bobbin 100 bobbins per box