Step2 Naturally Playful Lookout Treehouse Step2 has been recognized as a top quality manufacturer of children�s play sets, and the many products they churn out are simply testament to that. They concentrate on the entertainment of young kids everywhere, as long as ensuring that the materials they use are truly durable and safe. Of course, if you�re looking to get your child an indoors slide that he or she will love playing around in, the Step2 Naturally Playful Lookout Treehouse is just the right thing. This treehouse play set is very easy to assemble, and features a 19 inch platform which is just high enough to avoid awkward spacing inside the house. It also has a periscope which can pivot all the way to 180 degrees. The Step2 Naturally Playful Lookout Treehouse requires adult assembly, but once that�s done, kids can enjoy their very own tree house set!