- Pre-wound bobbins, particularly convenient for multi-heads. Always ready to use, with the same amount of thread on each bobbin enabling all bobbins to be changed at the same time without wastage.
- Perfect for high quality embroidery results.
- The magnetic side ensures that the bobbin is more stable in the bobbin case, resulting in a smoother bobbin tension
- Please remove the anti-backlash spring from your bobbin case before use