Description
Copernicus Toys Rattleback
Copernicus Toys Rattleback has a semi-oval top and spins only in one direction. It voilates Law of Conservation of Angular Momentum from the physics. It’s a complete rebel, try it yourself and see how it spins.
Features
- Available in assorted colors
- Includes one rattleback and instructions
- Packed in a 4×6″ peggable bag
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