This is a blast from the past that may stump you even if you grew up in an old house. We've puzzled you with some pretty confounding antiques before, but this one is really tricky. Unlike some of our challenges from the past, some homes just didn't have one of these, but they were pretty popular a few decades ago.
Here are a few hints to help you figure out what this is, in case you're stumped.
If you can't tell from the photos, these are in the bathroom.
If you've ever done any renovations you, probably know what these are.
And finally, there's a good reason that we don't use these anymore.
Think you know what it is? Click the next page to reveal the answer!