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Description
These slick Teflon washers eliminate the backlash in the bobbin when changing directions at high speed. 'Backlash' creates "birds' nests" in free-motion quilting and embroidery. Just drop a LITTLE GENIE in the bobbin case, replace the bobbin and you're good to go!
Fits most domestic machines.
Pack of 12 for snap in bobbins (vertical)