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"Use oriental medicinal science of HAND REFLEXOLOGY to stimulate the brain & lungs while exercising the hands & fingers."
German version is named "hydas fingermassage puzzleball"
Hydas is a german based company which sells massage devices among others.
Please note that Otto Wu used his own name for the company.
Diameter: 81 mm
Weight: 149 grams
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Thank you to the following people for their assistance in helping collect the information on this page: Warren Pemberton, Michael Cote.
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