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Whirlpools are phenomenal forces of nature. While you might not want to come across one in the ocean, the Bottled Whirlpool is a completely safe and fascinating way to study one. Simply fill the device with water along with the accompanying pieces which will swirl around along with the whirlpool. Now, press the button and pull the lever and watch the whirlpool come to life! With three different gears, you can adjust the strength and intensity of the whirlpool to your preference.