1pcs N52 magnet 50x30 mm Powerful permanet round Neodymium Magnet Strong magnetic Rare Earth NdFeB gallium metal or 40x20 or N35|Magnetic Materials| - AliExpress
Neodymium Magnet N52 D60x40 Super Strong Round Magnet 250kg Rare Earth Strongest Permanent Powerful Magnetic Iron Shell - Magnetic Materials - AliExpress