I think double sided is the way to go! We drag this along the riverbed in our kayak and have pulled up quite a few "treasures”.Magnet is definitely strong enough to pull up larger items when it "latches” onto them.
I definitely recommend it.
💪 MHDMAG 960lbs Super Fishing Magnets: The Ultimate High Power Magnet Fishing Kit with Neodymium Rare Earth Magnet for River Retrieval, Magnetic Fishing, and More! (Diameter 3.54in / 90mm)
24 Review
Heavy-Duty 600Lbs Double-Sided Fishing Magnet Kit With Rope, Gloves, And Neodymium Rare Earth Magnet - Ideal For Underwater Salvage!
24 Review
Get Hooked With 400Lbs Pull Force: MUTUACTOR Strong Retrieval Magnet For Fishing And Salvage
43 Review
Super Strong 650Lb Neodymium Fishing Magnet Kit - Ideal For Magnetic Fishing In Rivers, Indoors, And Outdoors - Large 2.95In Diameter (75Mm)
21 Review