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This item qualifies for Free Ground...
1002867 Includes Only:
For demonstrating a body floating, sinking, or rising in water. A hollow figure made of colored glass, with a narrow opening. The figure floats upright in a cylinder filled with water and can be made to float, sink or rise by applying pressure to the rubber cap. The rubber cap fits cylinder diameters of approx. 30 mm to 40 mm, free-standing cylinder.
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