First, I'll say that the organs are fantastic. The kids love them because they're disgustingly realistic and squishy, and they're made well. However, the clear plastic body shell is horribly, cheaply made. It is sorely misaligned and will barely snap together without all the bones, muscles and organs inside it...and with them inside it, it will not snap completely closed at all. If you can manage to line up some of the tabs, some of the other ones will pop out of place. We spent an entire evening painstakingly trying to get it to actually go together, with no luck.