Neodymium Block Industrial Magnets for sale | eBay
DIYMAG Strong Neodymium Fishing Magnets, 700 lbs(318 KG) Pulling Force Rare Earth Magnet with Countersunk Hole Eyebolt Diameter 2.95 inch(75 mm) for Retrieving in River and Magnetic Fishing: Amazon.com: Industrial & Scientific
40 x 20 x 10mm Strong Block 2 Countersunk Holes 5mm Rare Earth Neodymium Magnet | eBay