Description: 【Multifunctional design】: This backpack trolley is designed to carry school bags, backpacks, and more, making it a convenient companion for various outdoor activities 【Quality material】: Crafted from quality aluminum alloy, this school bag trolley is sturdy and wear resistant, ensuring long time use 【Adjustable features】: The 6 wheels luggage cart features a 3 stage telescopic handle and a foldable base, allowing you to adjust it as needed for flexible use 【Compact size】: With a base size of 20 cmx28 cmx7 cm/7.87 inchx11.02 inchx2.76 inch, this foldable hand trolley boasts a compact structure that is sturdy yet lightweight, making it an ideal gift for both boys and girls 【Versatile applications】: Great for school, traveling, camping, picnics, shopping, fishing, and more; this rolling backpack adapts to various scenarios with ease Specification: Material: Aluminum Alloy Size Chart: Base Size: 20cmx28cmx7cm/7.87inchx11.02inchx2.76inch 1 Section Length: 40cm/15.75inch 2 Section Length: 65cm/25.59inch 3 Section Length: 90cm/35.43inch Package Includes: 1 Backpack Trolley Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.