Zen Magnets and Neoballs Magnets Recalled Due to Ingestion Hazard

When two or more high-powered magnets are swallowed, either accidentally or intentionally, the ingested magnets can attract to each other, or to another metal object, and become lodged in the digestive system. This can result in perforations, twisting and/or blockage of the intestines, infection, blood poisoning, and death.

Source: Recall List