Photo 1 of Saysurey 2 Pcs Large Ferrite Ring Magnets OD3.94 x ID2.36 x 20mm Ceramic Round Magnets with Hole Round Disc Donut for DIY Science Projects Classroom Laboratory

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Photo 1 of Saysurey 2 Pcs Large Ferrite Ring Magnets OD3.94 x ID2.36 x 20mm Ceramic Round Magnets with Hole Round Disc Donut for DIY Science Projects Classroom Laboratory