10 pack of Brother White Prewound Bobbin PRWB135 Cheap Pice Outlet

10 pack of Brother White Prewound Bobbin PRWB135

For Use With: PR-600 PR-600II PR-620 PR-650 PR650e
PR-620 PR-650 PR650e PR1000 PR1000e Babylock EMP BMP ENT10
BNT10

These
magnetic core embroidery bobbins are the only bobbin specifically
designed to sew without tension variation throughout the entire
bobbin. The magnetic core, combined with advanced EB “cross-link”
technology optimizes dynamic thread delivery to create consistent
tension from beginning to end of each bobbin.

• Patented magnetic core
  creates unmatched tension uniformity.
• Bobbin will sew to the
  very end without tension variation.
• High tenacity 60wt
  polyester yarns.
• Patented magnetic core
  embroidery bobbin.
• Lower cost per yard based
  on usable yards per bobbin.
• Bobbins come with 135yds
  per bobbin.

If you have a backlash
tension spring in your bobbin case remove it and insert the Fil-tec
bobbin in it. See the difference.