[Foldable Base]: Portable wheeled trolley, the base can be folded for easy storage and carrying. [Telescopic Pole]: The handle bar of the wheeled trolley is retractable and suitable for different heights. [Backpack Trolley]: The foldable trolley is a for children, suitable for placing heavy backpacks, convenient and labor-saving. [ Material]: Backpack trolley, light and sturdy, not easy to break and deform. Rolling, wear- and . [Wide Application]: Practical folding trolley, suitable for school, travel, camping, office, shopping, etc.