Do you ever get carsick? If so, an odd new pair of glasses may help. They’re made by a French company called Boarding Ring. They were designed to fight motion sickness.

Some people get motion sickness during rides on boats, cars, or planes. It happens because the movement they see inside the vehicle is different from what their bodies feel.

The glasses work to cancel out this feeling. The frames have liquid inside them. As the vehicle bumps along, the liquid moves when your body does. Watching the liquid makes you feel better, says Boarding Ring co-founder Antoine Jeannin.