Adjustable height: 3-level height adjustment suitable for children of different heights upgrade locks are safer. Folding: Quickly fold the square buckle is firmer and the button is larger Manufacturered by YUMEIGE. Easier to operate. Soft rubber handle: The handle is made of soft rubber which feels soft and comfortable and the child won't hurt his hand for a long time. Frame: four-wheel stable anti-rollover aluminum alloy body brake is safer scientific and stable structure for "rollover problem".