Thanks for the concern! The sticks (don't worry....not pine) are wedged in at the top, and the tower is wedged between the sticks, so while he's tiny it won't be an issue. But as he gets larger we will need something a bit sturdier if he continues to climb. As for the holes, there are 2 larger (comparable to him......about the size of a golf ball) holes along the bottom of the tower he uses to climb in and out, but we were talking about making them bigger....as he's growing pretty quickly.

And yes.....I'm addicted....