... the help of feet and the ground forces to advance the purpose of skateboard using only the ... of the history of skateboarding ,what is more ,it is good for girls to keeps good figure. Features ... SIKETE stepping scooters special attention to:1, Scooter should be in a safe place to use, avoid unsafe areas in ... 6, when using to a certain extent, replace the new tires, so as to avoid tire wear caused by brake ...