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Old 12-16-2012, 03:22 PM
  #5  
LTeachergeorge
Senior Member
 
Join Date: Nov 2011
Location: Central Missouri
Posts: 715
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I tried one at my LQS. I felt it was very wobbly, which, I was told, was to build up "core"muscles, thus avoiding the aching backs we get from sitting at the machine so long. I did not buy one. Linda
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