Rex London Build your own lie detector kit – Secret Agent Sale

WARNING! Choking hazard; small parts. To be used under direct supervision of an adult. Please read instructions carefully before use. Batteries to be inserted with correct polarity. When not using the product for extended periods of time, remove the battery for storage. Retain all packaging for future reference. This is a toy that reads electrical resistance caused by sweat, it cannot guarantee if someone is telling the truth or lying. Store this product away from high temperatures, humidity and direct sunlight.