Super Strong N52 Neodymium Magnet 3 x 1/2 x 1/4" 14 lb bar, The World's Strongest & Most Powerful Rare Earth Magnets by Applied Magnets: Amazon.com: Industrial & Scientific
12mm X 2mm N52 neodymium magnets round discs 1/2in x 5/64in
Super Strong N52 Neodymium Magnet 3 x 1/2 x 1/8" Bar, The World's Strongest & Most Powerful Rare Earth Magnets by Applied Magnets: Amazon.com: Industrial & Scientific