Feynman Magnet Set
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Now you can construct your own Feynman diagrams on your fridge! The FEYNMAN MAGNET SET includes 40 1" (2.5 cm) magnets and one 8" x 11" magnetic sheet (20 x 28 cm). Magnets come in a plastic or cardboard box (boxes will vary). We like to think RIchard Feynman would approve.
11 oz (311 gm).
For ages 10 and up as it contains magnets.