Introduction »COLOUR BALLS,SPECIAL BALLS»URANIUM BALLS,CUBES,PYRAMIDS » uranium pyramid 85X85X85 MM
Pyramid 85x85X85 mm made of uranium glass.
These Uranium pyramid contain about 1% Uranium which is added to the glass in the molten process. Because of the Uranium in the glass the marbles glow bright under Black Light also known as Ultraviolet Light (UV).
These marbles are completely safe to handle.