CPSC campaign 07164
Hazard
If a child swallows more than one tiny powerful magnet detached from the plastic building pieces or one such magnet and a metallic object, the objects can attract to each other inside the intestines and cause perforations and/or blockage, which can be fatal, if not treated immediately.
Remedy
Consumers should stop using the recalled magnetic sets immediately and contact Mega Brands for a comparable replacement toy.
The text above is quoted verbatim from the CPSC record. Confirm the affected units and the remedy with the manufacturer or CPSC. Recall data may be incomplete, delayed, or superseded.