They are worth your money. We hung decorations on the ceiling of our multipurpose church room (looks like a gymnasium ceiling with metal beams/rafters). I would recommend putting some kind of Loctite threadlock on them as they will come loose (the hook is screwed into a magnet that you have to assemble yourself). We had to develop a device to set up and record landscapes. We used a magnet to raise them and a hook to lower them. Both were attached to the end of a very long pole. It worked very well. These hooks even kept the chair off the floor. No problem. They are insanely strong.
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