Lie detector electric shock toy, party game, truth or dare, test your IQ. Made of high-quality ABS material, durable. Safe voltage, harmless to the human body, but not suitable for infants, children, people with heart disease or those with high blood pressure. Place the test subject's finger on the lie detector's sensor socket; when their heart rate increases, the liar will be punished. The most fun game at a party. Ask any question and see what happens. It's really funny to watch people get nervous. This is a great game to play with a group of friends. Very creative: suitable for those who like to think of bizarre questions. Suitable for those who like to make an effort to answer questions. Looks funny. A great way to keep you on the edge of your seat. A toy to give to friends, suitable for April Fool's Day parties, bus gifts, Halloween bus gifts, Christmas gifts. Package includes: manual measurement, error 1 cm. (1 inch = 2.54 cm) Thank you for your support :)