Newton's Cradle Balance Balls Desk Science Toy Gift for $5.99 Shipped

Filed under Desk Toy

Newton's Cradle Balance Balls Desk Science Toy Gift for $5.99 shipped.  Here is a screenshot for your reference.  It is not intended for kids under 12 years old.  It shows the laws of conservation of momentum and energy.  Having this on  your office desk will make you seem even more intelligent than ever.

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