Sometimes you need to keep something really small cold and close at hand. Or keep something really small warm. If you think you’re in need of a very tiny cooling or heating gadget next to your elbow, then the Thanko USB Mini Warm Cold Storage Unit is here to help you keep your nano items at the right temperature.

This is a really, really small device. Did we say that already? It’s not meant for a can of soda or even a juice box. It’s only 2.9 x 3.1 x 3.1 inches. Not a lot of space for much of anything. You could keep a single ice cube on it. A single perfect ice cube.

It hooks up via USB 2.0 and can cool as low as 10 degrees and as high as 122 degrees. So it gets really cold and really hot. You toggle the temperatures with a simple switch. Some actual things you can use it for:

A single piece of melting chocolate.

Melting cosmetics.

Hard piece of butter.

Cool/warm nano towel for your forehead on a warm/cool day.

The Thanko USB Mini Warm Cold Storage Unit is $50.