I collected these keychains from Marvel. Well done, especially for the collection. I wouldn't use it as a real keychain and the constant pushing and pulling seems to strain the body/chain connection. I didn't use it for anything other than a display case, but I had Captain America's shield and Thor's hammer zipped to my wallet. The tip of the hammer had unscrewed from the handle, and the guard had also come loose from its chain. So my guess is that the build quality is about the same across the entire product line.
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