In an effort to provide abused children with a safe way to reach out for help, a Spanish organization called the Aid to Children and Adolescents at Risk Foundation, or ANAR for short, created an ad that displays a different message for adults and children at the same time.

The secret behind the ad’s wizardry is a lenticular top layer, which shows different images at varying angles. So when an adult—or anyone taller than four feet, five inches—looks at it they only see the image of a sad child and the message: “sometimes, child abuse is only visible to the child suffering it.” But when a child looks at the ad, they see bruises on the boy’s face and a different message: “if somebody hurts you, phone us and we’ll help you” alongside the foundation’s phone number.

The ad is designed to empower kids, particularly if their abuser happens to be standing right next to them. And while this is a great and worthwhile use of lenticular images, how long will it be before toy companies start doing to the same thing to hawk their products directly at kids?