DIYMAG 40x20mm Super Strong Neodymium Disc Magnet, Permanent Magnet Disc, The World's Strongest and Most Powerful Rare Earth Magnets - One Piece: Amazon.com: Industrial & Scientific
Master Magnet 3/8 in. Dia Ceramic Disc Magnet (15-Pack) 97764 - The Home Depot
Ceramic Disc Magnet | Ceramic Magnets
CMS Magnetics Super Strong Neodymium Disc Magnet Dia 1.5x1/4" for Home & Industry. Holding Magnet for Kitchen, Garage, Garden & Office. Great as Therapy Magnets & School Science Projects - One Piece:
Disc Magnets Large - Neodymium Magnets - SuperMagnetMan