An unusually large puzzle at 15" x 12" x 4.5" .  Although this typically goes to adults associated with airplanes,  for a child it might double as a toy as it will stay together nicely and is quite durable. Wheels (both front and back) and the propeller turn.  There are 11 pieces when you get it apart.  A secret locking pin holds everything in place until it is turned. As a puzzle, it is moderately difficult to reassemble recommended for ages 10+, but I think that younger ones 7+ could be nicely taught.