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					Originally Posted by red98vett  Do they work or are they an accident waiting to happen ??? | 
 
  My FIL bought two at Wal-Mart awhile back - they were $16-20 each. One has the nubbies (spikey) and the other is small. He got the bigger ones because his chiropractor (sp?) told him to use those for his back. Well, I don't think he ever used them. So, he spent about $40 on something that he will more than likely never use. I can't remember what I paid for the core system that we got, but it came w/ several DVD's, excercise instruction cards, etc. --but it wasn't very much! I think we actually got it for $20!