Bought this for my son, who was really into the human body and doctor stuff. The pieces are fun and squishy. He ended up liking the squishy body parts so much he just carried them around the house, and ended up losing a lot of pieces. the skeleton is hard to put together, and the pieces are hard to get in. It is not something my child could do on his own. If you want to keep the kit all together, you need to be willing to put it away yourself. A kid older than 9 or 10 might be able to do it themselves. It would be a good kit for teaching a science course or homeschool class.