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CMS Magnetics Grade N52 Super Strong Neodymium Magnet Ring OD1.26" x ID 1/2" x 3/8" - Rare Earth Magnet Ring for Classroom, Science Project and DIY Applications - One Pack: Amazon.com: Industrial
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CMS Magnetics® Neodymium Magnet with Countersunk Hole on Both Sides, Grade N42 1 1/2 Diameter x 1/2" 1 Piece. Very Strong Magnet, Read The Instructions: Industrial Rare Earth Magnets: Amazon.com: Industrial & Scientific
Neodymium Disc Magnets - 12 mm x 3 mm (1/2 in. D x 1/8 in. Thick) | Magnetism | Physical Science | Science | Education Supplies | Nasco
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