Jimmy hats. Rubbers. Love gloves. Whatever you call them, condoms help prevent pregnancy and lower the risk of STIs. They’re 98% effective when used as directed (every single time you have sex), generally side‐effect free, cheap, and easy to get. And they make sex more fun, because it’s much more fun to knock boots when you’re not worried about someone getting knocked up. What’s not to like, right?

Unfortunately—even if they think they’re experts—lots of people don’t know how to use a condom properly, which puts them (and their partners!) at risk. Are you a condom pro? Put your skills to the test and see. Who knows? You might just learn something new.

For more information about condoms and other forms or birth control, check out Bedsider.org.