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)
Use these jumbo magnet marbles for all kinds of magnet exploration!
Item#: 13758 Age: 5+
(1 customer reviews)
Sign-up for our weekly discounts and promotions email newsletter.
View xUmp science supplies catalog