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Rattleback
The Rattleback, from Tedco Toys, "demonstrates Newton's Laws of Motion!" It has a flat side and a rounded side - place it on a flat surface with the rounded side down, and watch it spin and reverse. It is translucent and can also acts as a magnifier!
For 6 yrs +
This product is no longer available.
| Brand: Tedco |
Barcode:
13930