Ant Mag Magnetic Hooks 140LBS Heavy Duty Neodymium Magnet with Swiveling Carabiner Magnet Snap Hook for Indoor/Outdoor Hanging Bag Kitchen Garage Magnet Type Cruise Ship Magnetic Hook (8 Pack)

I Truck Drive and Use These to Attach My Red Flag on Over Hanging Steel at the back of my TrailerThese Do Swivel and Works Perfect so these do not Bind up like Others that Break do to Wind PressureWe Drag these off due to the Strength of the Magnet and often Ask Big Guys to Try and Pull it Right off the Steel and Watch them Struggle with No SuccessThe Thicker the StealThe Better it Holds

No doubt as others have said they are very strong magnets. But if you use them on a vertical surface as I do and hang anything more than a few pounds, they slide right down making them basically useless.They come with no instructions yet have extra rings and sticky disks. Perhaps those are to be glued on surface? Defeats purpose. Also, small carabiners are low quality and stick upon trying to open.

Extremely strong magnets holding large banners to our steel bridge. Nothing has moved in several months of outside use.

As the title suggests, these are top quality and the magnets are incredibly strong. They also came with 2 ring clasps and 2 Carabiners.

I underestimated the strength vs my needs. It's still stuck on my van's center console with no hope of being removed. If you need a fridge magnet that will hold another fridge go on and click.

Nothing to dislike so far. Needed the carabiner type clip for some less frequently used items so got some simple magnetic hooks for lighter short term use like clothes etc.

Very strong magnet

Wow, these are really powerful. I use them in my 40' steel container to keep 500 lb. shelving units upright against the walls. They really do the trick.