Atlas tree
I found the small but adequate instructions for putting the tree together,found the tunnel pipe would be held on by one short screw as if hanging from one of the platforms very high up,so I decided to put it the other way up so resting on a platform & screwed on with longer,more secure screw at a lower level.
I had glued rubber discs (cut out from an old hot water bottle)onto the existing wooden disc this stopped the thing from moving & resting on the bare wooden disc itself.
Aprt from the above hiccups. I found putting this together easy enough & with the help of two certain little kittens, soon had the thing up & ready for inspection....much to thier approval & they loved it, in fact, once on, they didnt want to get off. great for mulitple cats, great seeing them hiding & playing on it.