The foldable 2 wheels trolley cart for school bags is-ideal for children school bag. An ideal-gift for children, the stylish-backpack trolley is-perfect for travel, school and excursions. 43/66/90cm, 3 levels of height adjustment, one-click stretch. The trolley is-ideal for kids school bags. The backpack trolley is-made of high-quality aluminum alloy material, strong and Whether on level ground or stairs. Effectively free the shoulders and spine of children.