72 Magna Glide Classic Bobbins. 210yds per Bobbin. 

60 wt Filament Polyester. 

Team up with 40wt Glide on the top when you want your bobbin to go further or are looking for a finer look in the bobbin. 

Here's a video on how we adjust our Handi Quilter bobbin case for magna bobbins - 

UNIFORM TENSION CONTROL

Filtec's 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.

FEWER BOBBIN CHANGES

The magnetic-core bobbin offers significantly more stitches per bobbin, reducing defects & increasing productivity.

HIGH-QUALITY YARN

Fil-Tec uses only the finest quality, high tenacity polyester yarns to make our patented magnetic-core embroidery bobbin.

CLEAN RUNNING

Advanced EB cross-link technology reduces lint & residual build-up in the bobbin case & tension spring. The result is a more trouble-free bobbin.