Don’t risk taking a guess. The slider can identify a mustache with 100 percent accuracy.

Just move the slider to find out if the man has a mustache.

Even if you’re good at recognizing mustaches or lack of mustaches, you might as well double-check.

When you have access to an error-free mustache-detection method, it’s simply reckless not to take advantage of it.

Does this woman have a mustache? Probably not, but let’s avoid even a shred of doubt.

The imperfect human eye could easily make mistakes when searching for mustaches in a crowded photo like this. It’s no problem for the slider, though.

Even though it’s an extra step, it’s worth it to be completely certain about whether or not this man has a mustache by moving the slider.

Aren’t you glad you played it safe and used the slider? Now, you can enjoy peace of mind.