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Customer Reviews
Fatastic
Posted on: Dec 20 2012 by: from
It's fascinating for people of any age.
Better than Duncan
Posted on: Jun 14 2012 by: from USA, Illinois, Deerfield
They are great. Exactly what I needed. They are sturdier than the Duncan gyroscopes that broke within days. Thanks
Great Tool
Posted on: Feb 20 2012 by: Bob from Tucson, AZ
Great learning tool for applied physics.
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