creative ferrofluid magnetic display bottle toy transparent black

WARNING: Keep away from children; Do not put magnets in mouth or nose; Swallowed magnets can stick to intestines causing serious injury or death; Seek immediate medical attention if magnets are swallowed or inhaled. For ages 17+ not a toy Desktop boredom buster for science-based amusements Use the magnets to move the ferrofluid around and observe its behavior Utterly attractive and awesome

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