MAXIMA Steel Neodymium Iron Boron Magnets, Shape: Round Ring
Amazon.co.jp: Neodymium Magnets 50x20mm Neodymium Magnets N52 Super Strong Round Magnets Rare Earth NDFEB Immanes Magnetic Material Slow Water Gas Meter Strong Rare Earth Magnet (Color: D45H15MM) : Office Products
1" x 1/4" x 1/4" thick N42 Neodymium Magnet - 5.77kg Pull - Licensed Material | Magnet Materials & Standard Assemblies from First4magnets.com
3/8" dia x 1/4" thick N42 Neodymium Magnet - Licensed Material | Magnet Materials & Standard Assemblies from First4magnets.com
5/16" dia x 1/8" thick N42 Neodymium Magnet - 1.46kg Pull - Licensed Material | Circular Disc & Rod from First4magnets.com
3/8" dia x 1/4" thick N42 Neodymium Magnet - Licensed Material | Magnet Materials & Standard Assemblies from First4magnets.com