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 &
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