8Pc Super Strong Neodymium Magnet 1.26" x 1/8" Discs, The World's Strongest & Most Powerful Rare Earth Magnets by Applied Magnets: Amazon.com: Industrial & Scientific
What are Rare Earth Magnets | Neodymium Rare Earth Magnets
Amazon.com: Strong Neodymium Disc Magnets Stronger Than N35 Rare Earth Magnets - 1.26 inch x 0.08 inch, Pack of 24 : Industrial & Scientific