Features: - A fun to play submarine shape building block and a no mess snack keeper (anti-spilling soft TPE flaps) that easily inspire your child's imagination. - It comes with squeaky missiles and when you wind up the propeller it produces an engine mimicking sound effect. - The periscope and the propeller can be made into a flying saucer. - The missiles, periscope and propeller are individually detachable parts. - Easy to wash and clean.