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Rheoscopic, what? Rheoscopic fluid is a special material that shows currents. Within this planet's shell you will see fluid dynamics visualized in spectacular ways. This SWORLD's shell is strong and resilient like you! So you can bounce it. Give it a twirl and watch a bazillion microscopic shimmering particles flow. After the turbulence, the SWORLD will calm.
WARNING: CHOKING HAZARD -- Small parts. Not for children under 3 yrs.
AGE: 3 to Adult