N52 Neodymium Bar Magnets 3 X 1/2 X 1/8" Rare Earth Strong Rectangle Magnet One Pack for Stamp Platform, Hobbies & Crafts and Science Projects: Amazon.com: Industrial & Scientific
Super Strong N52 Neodymium Magnet Block 3 in x 1/2 in x 1/4 in - Applied Magnets - Magnet4less
N52 Magnets - Magma Magnetic Technologies
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
N52 Disc Neodymium Magnet 25mm dia x 10mm 1pcs/pack
2pcs Round N52 Large Neodymium Rare Earth Magnet Big Super Strong Huge 40mm*20mm | eBay