With the Olympics in full swing, McDonald's, one of the Games' sponsors, wanted to show kids the importance of staying active. The fast food company put fitness trackers in its Happy Meals, but has since retracted them from the meals, according to CBS News.
"STEP-it" fitness trackers were offered in each Happy Meal sold in the U.S. and Canada, according to engadget.com. Kids could put the wearables on their wrists and track their steps. The devices would also blink depending on the speed of the child's motion.
But users quickly began to notice a problem — their skin grew irritated while using the wearable.
Terri Hickey, a McDonald's representative, said the company is "fully investigating the issue" and "offering [its] youngest guests an alternative Happy Meal toy," according to CBS News.
The report did not comment on what may have caused the issue.