General Comments: I bought the Ceratosaurus Skeleton for my 7 year old for Christmas and he sat at the table all day. He loved finding the bones one by one. We gave him a paint brush for wiping away the sand as he chisels. My husband and I can't believe how involved he is. He loves dinosaurs, but it's the activity of finding the bones that makes this worth the money. He's already asking for more. One note: We had a big flat box with shallow sides and took one side off and put it on the kitchen table. It will be a great summer outside activity.