surfwheel su/hx one +4 wheels electric skateboard (one wheel hoverboard) - with patented safety wheels surfwheel stay fit, be thrilled, surfwheeling! exploring becomes thrilling when you are surfing the land on a surfwheel su electric skateboard/hoverboard. the lightweight design makes it easy to carry around the su 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. the one +4 wheel surfwheel electric skateboard is your hoverboard upgrade.