Black 36 prewound bobbins, cardboard sided, with plastic core.
Bobbins Size: L size
Fiber: Filament Polyester
Yardage: 125 yards
Weight: 60wt embroidery thread
125 yards of premium quality poly filament thread on each bobbin.
L size - universal for most embroidery machines. Good prewound bobbins are wound by high tech machines which provide a smooth, uniform wind.
The result is much more thread on the bobbin than a self-wound bobbin.
Difference between plastic sided and cardboard sided bobbins:
Plastic bobbins are reusable; cardboard bobbins are disposable.
Some machines, especially Pfaff (2124, 2170, 2140), work better with the cardboard-sided bobbins.
Cardboard sides provide more friction and backlash is usually not an issue. If it is, the bobbin tension may need to be tightened.
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