I'm sure it says in the description but screws are not included. It's hard to rate reliability as it can depend heavily on the screws used. The wheel itself seems pretty sturdy, but we don't use it for something we ride often, and it sits well on carpet. I didn't think the wheel would ever have any problems, but if the wheel isn't properly secured to the mount, that's another story. All in all it's great, you get a ton for a good price and it's exactly what we were looking for.
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