Aw he's lovely. Beautiful markings and colouring!
I don't use the tubes on the HH anymore - haven't done for a while now - so Ping doesn't have them. As you'll have seen from the photo I already showed you; he does have tubes within the cage to play in such as the Playground kit he's got but I needed to put a cage on top of the HH which the tubes wouldn't allow me to do. You can buy
These which have a stopper attached to them that would block the hole in the HH if you chose to do that or
This House also comes with three stoppers that you can also use on the HH holes!
Plus, I had to get rid of the Penthouse (green think on top) anyway as my Syrian hamster who initially had that cage nibbled at it to try and escape so I don't think it's 'safe' anymore!
I haven't tried to handle Ping yet either as he's only very young still and is very shy so we don't see much of him yet. He is *very* fast though!
So we'll have to try and progress with taming and update each other. :P