You get what you pay for. In order to fit a regular solid metal hammer in, I had to line up all three side by side. I don't know if the quality of their magnet has dropped compared to other reviewers, but it's nowhere near as bad as advertised in their pictures. Also, someone used one of them as a notepad, and one of them has stickers with Chinese text. The captions didn't bother me, other reviewers mentioned stupid stickers and I was planning on removing them. But these magnets, which alone can only hold a 16mm key, are unacceptable. Waste of money, find another brand.