These remote-controlled submarines fit into the palm of your hand and have dual propeller propulsion systems that allow omnidirectional movement underwater in a bathtub, swimming pool, or in shallow ponds.
With just ordinary tap water and batteries, you create the hydrogen fuel needed to blast this sleek rocket 200 feet into the sky. Set includes hydrogen fuel launch system, four-point system check, remote control, push-button ignition, rocket, and parachute.
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