Super Strong N52 Neodymium Magnet 4 x 1/2 x 1/4" Bar, The World's Strongest & Most Powerful Rare Earth Magnets by Applied Magnets: Amazon.com: Industrial & Scientific
Super Strong 270-LB Neodymium Cup Magnet 2.5" Countersunk Permanent Magnet Fastener, The Strongest & Most Powerful Rare Earth Magnets by Applied Magnets: Amazon.com: Industrial & Scientific
10Pc Super Strong Neodymium Magnet 1.26" x 1/8" NdFeB Discs W/ Red dot to indicate North Pole, the World's Strongest & Most Powerful Rare Earth Magnets by Applied Magnets: Amazon.com: Industrial &