1) Human-powered vehicle 
Xootr (pronounced `zoo-ter`) is a manufacturer of folding kick scooters and folding bicycles. Xootr scooters are characterized by 180 mm polyurethane wheels with aluminium hubs, and a hand brake for the front wheel (for the rear on old models). Compared to the other folding scooters with smaller wheels, these larger wheels provide an easier ride.....