While many of us have heard of “hoverboards,” the two-wheeled machines that many people have started riding around, they have a big problem. They don’t actually hover. Many companies, though, are working on hoverboards that actually float in the air.

There are many reasons for hoverboards other than looking futuristic. Hovering creates a lot less friction that rolling on wheels, which would save a lot of energy.

A company called Arx Pax plans to create the Hendo Hoverboard. It utilizes the way magnets repel each other to suspend the board in mid-air. It’s only constraint is that it needs for a conductive surface to be on the ground. It would require a complete change in how our roads work, but it could work with anything, from trains to cars to a singular person.

“Our technology can all share the same infrastructure,” Greg Henderson, co-founder of Arx Pax, said. “A single person, or a train with a thousand people could take advantage of this incredibly efficient low-cost, new maglev technology.”