440lbs Pull Force Super Strong Fishing Magnets, Heavy Duty Rare Earth Magnet N52 Neodymium Magnets with 35ft Thick Durable Rope, Powerful Magnet Fishing and Magnetic Recovery Salvage https://www.amazon.com/dp/B07V1Z5Y76/ref=cm_sw_r_apan_glt_fabc_SHB48N71SE0V0CVDEQCT?_encoding=UTF8&psc=1