Apple is selling a piece of cloth for $19

• Apple unveiled some new products at its hardware event on Monday.
• Among them is a $19 "Polishing Cloth."

Apple introduced a host of new products at its hardware event on Monday, including a $19 "Polishing Cloth."

Here how it described the cloth on its website: "Made with soft, nonabrasive material, the Polishing Cloth cleans any Apple display, including nano-texture glass, safely and effectively."

It doesn't specify what material the cloth is made of.

And it kept its "What's in the Box" description simple: "Polishing Cloth."

And here's just a partial list of Apple products that the company says the cloth works with:

Apple unveiled some fan-favorite features at its event, including the reintroduction of MagSafe.

But it was the cloth that caught many social media users' attention. One noticed that it was also compatible with the iPod shuffle, which has no screen: