Wukong 172LBS (78KG) Pulling Force Super Powerful Round Neodymium Magnet with Eyebolt Diameter 1.89"(48mm) X Thickness 0.47"(12mm) For Sciences, Industry,Fishing and Salvage (Diameter-48mm)

Arrived quickly and is very strong, I bought to retrieve a penknife I dropped in a stream, but have found loads of uses since.Be warned, it is very strong, if you stick to anything solid steel, it’s difficult to remove!Thanks

Not sure if it would lift 78Kg, but it's strong. No good for stainless, as depends on what type of stainless, the items I tested it on vary but none strong enough to lift.

Not bad for the money starting magnet good for

Ol

Excellent magnet

Very strong magnetism, ideal.

Very strong magnet does the job

Just what I wanted