hx edition one-wheeled+4 electric skateboard/hoverboard with patented safety wheels surfwheel surfwheel hx edition. exploring becomes thrilling when you are surfing the land on a one wheel electric skateboard/hoverboard. the lightweight design makes it easy to carry around in streets. the led light illuminates the city at night. you can feel the rush of surfing a wave with the convenience of just having to step out your front door.