Amazon.com: Dia 1/2x3 inch (12.7mm x 76.2mm) Neodymium Magnet, Super Strong Cylinder Magnet Diametrically Magnetized w/ Poles on the Sides. Made of NdFeB Rare Earth Magnet for Magnetic Pick Up Tools, Crafting
Magnetic Bars Magnet Rods 12500 Gauss Permanent Stainless Steel Wrapped D32*650mm Separating Ferrous Material - AliExpress