As usual, the goal is to free the marble that is trapped and you should not need to use external tools.
So here you see a red rod with screw in 2 places and an hexagonal screw that may be useful at some point.
You definitely need a bit of dexterity (especially when you reassemble the puzzle) but you also need to use the tools in the appropriate way.
I liked a lot the steps and I did not find this puzzle fetched contrary to a previous puzzle bottle with a black top. I feel that the tools are used in a clever way.
About the difficulty, I would say it's moderate: not overly difficult, but not that easy. So a nice challenge. I am sure you would like it.
|I am sure you have seen that it should not come out that way :-)|