Magnetix

Magnetix is a magnetic construction toy that combines plastic building pieces containing embedded neodymium magnets, and steel bearing balls that can be connected to form geometric shapes and structures. Designed to be a cheaper version of the Geomag magnetic construction set, Magnetix's image suffered severely when an early manufacturing defect caused a death. It was sold under various brands after the defect was corrected.
The spheres are to in diameter (larger than Geomag), approximately in weight, and... plus