Check the listing for details. Robot Design Mini POP POP Boat. Condition: New. Listed at 14.98 USD. The Robot Boat drives itself with the power of steam! This cute mini tin toy has an adjustable rudder to direct the path of the little Robot boat. This unique steam powered tin boat uses an actual flame and candle to heat the "boiler" and move the boat through the water using its exhaust pipe, making “POP POP” sounds. This boat set includes a candle, eye dropper, and instructions to start the engine and watch it go. Type: Tin Boat - Blue Top with Printed Robot Details - Assorted Colors Tin Boat Hull With Gold Hull Kit includes boiler, candle, fuel spoon, dropper, and instructions Category: Retro Tin Boats • For Collectors (adult supervision required) Size: 5.5" Long (5.5 x 2.5 x 1.5 inches) Package: Printed Kraft Gift Box - “Pop-Pop Boat - Real Steam Engine”