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Old 09-02-2020, 02:00 PM
  #4  
cjsews
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Join Date: Nov 2011
Location: Tn
Posts: 8,710
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I looked it up too. Looks like a non woven material. More like batting or felted. If that is what it is, I think it is the nature of the material to leave bits behind. Maybe you can use a scrubby to clean it
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