Loads of good advice above, so I wouldn't repeat everything, just a note of caution. With an enclosure that high, you have to be careful as young balls explore everywhere including up. And they're very clumsy. It MIGHT be able to scale the corners or climb some furniture inside and somehow find its way up. I used to keep my baby in a 1.5ft high enclosure, and I dont know how but he always found his way up, wedged himself in the corner between the ceiling and the wall, and never found a way down except straight down. Freaked me out a lot.