<p>Description:</p> <p>DIY Assembly Physical Kits: Electric Lie Detector</p> <p>Come with unassembled parts and instruction: assemble the experiment by yourself</p> <p>Working theory: Discover who\u0026#39;s telling the truth and who\u0026#39;s lying by measuring a person\u0026#39;s physiological changes, such as blood pressure, pulse, breathing, and skin resistance.</p> <p>An interesting liar detector game. It would be a great warm-up game at a party.</p> <p>Trains children\u0026#39;s hands \u0026amp; eyes coordination, fine motor skills, stimulate observation \u0026amp; thinking abilities</p> <p>Great \u0026amp; interesting physical educational toy, also good for parent-child interactive game</p> <p>Material: Plastic</p> <p>Specification:</p> <p>Assembled Size: Approx 15 x 12 x 4 cm \/ 5.91 x 4.72 x 1.57 inch</p> <p>Package Includes:</p> <p>1 DIY Electric Lie Detector Kit (Includes Chinese Manual)</p>