These condoms change color when they come into contact with sexually transmitted infections borne by their users, according to a UK medical academy.
The 'S.T.EYE' has a built-in indicator to detect infections such as chlamydia and syphilis, turning a different colour depending on the strain of bacteria present.
What's even more surprising is that these nifty condoms were invented by students under the age of 16, which is ironically below the legal age of consent for sexual intercourse.
But this did not stop 14 year-old Daanyaal Ali, 13 year old Muaz Nawaz and 14 year-old Chirag Shah. The Isaac Newton Academy students invented the condoms because they wanted to "make detecting harmful STIs safer than ever before" without the need for invasive tests.
The students were awarded the TeenTech prize for best health innovation.
"We wanted to make something that make detecting harmful STIs safer than ever before, so that people can take immediate action in the privacy of their own homes without the invasive procedures at the doctors," says Daanyaal. "We've made sure we're able to give peace of mind to users and make sure people can be even more responsible than ever before."