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
Neosmuk Rare Earth Magnets, Super Strong Magnet Heavy Duty for Craft, Neodymium Magnets with Adhesive Backing for Board, Thin Powerful Large and Industrial Magnets Stick for Cabinet, Refrigerator: Amazon.com: Industrial & Scientific