Breaking the habit of touching your face may be difficult, but doing so may save your life. According to health experts, the coronavirus can live on surfaces like doorknobs that we touch as we go about our day. Instinctively, we bring our hands to our faces and may transmit the virus to our eyes, nose and mouth. NASA has developed an ingenious wearable that vibrates when you bring your hands toward your face, warning you to stop. The round pendant is called PULSE and while it’s not exactly attractive, it could be another important piece of ammunition in the war against COVID-19.

According to USA Today, the wearable will help people curb the spread of the coronavirus.

“The haptic feedback from a vibration motor stimulates a nudge, reminding the wearer to avoid touching these entryways in order to reduce potential infection,” NASA said on its website.

Yanko Design said that NASA isn’t selling these directly, but if you have a 3D printer you can make one yourself following the directions offered by the Jet Propulsion Laboratory.

It works on a simple mechanism. The necklace has a sensor that detects movement when the users lift their hands to their faces. A simple button battery then triggers a vibration to warn you to stop. While the pendant isn't exactly pretty, it can be a useful tool to help wearers establish new behavioral patterns that will keep them safe, along with wearing masks in public, and frequent handwashing.

“We hope individuals or companies will replicate, refine or enhance PULSE and make is easily available for distribution,” NASA said, according to USA Today.