Lodestones are the only example of naturally occurring magnets!
Item#: 10154 Age: 5+
(3 customer reviews)
There are countless experiments one can do with these magnet marbles!
Item#: 10146 Age: 5+
(4 customer reviews)
Experiment with the hidden force of magnetism with this great set!
Item#: 11672 Age: 4+
(1 customer reviews)
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