This was fun to put together, but requires more manual dexterity than a 6yo would have so I'd have to say probably 8-10+. And re: the other review, since when has a puzzle ever come with instructions? Ummm never. I'm an adult, and it took me an hour to get it together. It is fairly delicate once assembled since it's so long, put it in a safe place.

This was interesting to put together. It didn’t come with actual directions so it took several days to put together. Many pieces didn’t match up.