ULIBERMAGNET 700LB Double Sided Fishing Magnet Kit, Strong N52 Neodymium Magnets with Rope, Underwater for Discovering Treasure,Searching Detecting - Walmart.com
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