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Old 07-07-2011, 06:51 PM
  #4  
Grandma Mary
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Join Date: Mar 2011
Location: Michigan
Posts: 757
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It just helps make sure the top and bottom fabric is sent under your needle EQUALLY so you don't have discrepancies. I have used it for machine quilting and anything that has a thicker feel to it, like sewing little purses etc.
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