Real projector: bring your own movie projector into life with 183 wood pieces. Enjoy a black& white film of chaplin’s classic piece.hand generator: no battery needed, totally green. Just crank the handle to run the motor inside and generate power for screen light.challenge your brain: hours of immersive building to tease your mind. Step by step construct structures of an appealing model and be proud of your work.challenge your brain: hours of immersive building to tease your mind. Step by step construct structures of an appealing model and be proud of your work.