Description: Material: This backpack trolley is made of aluminum alloy and pp, which is lightweight and sturdy. It's not easy to break or deform, making it suitable for long term useTelescopic Handle: The foldable trolley is ideal for carrying heavy backpacks. It Is Easy to move around, saves effort, flexible and wear resistantMultifunctional: This trolley can be used with suitcases, backpacks or bags that needs a pull rod. It's ideal for climbing stairs or moving around easilyWide Application: Practical folding hand truck suitable for travel, camping, office use and shopping etc.Foldable Base Design: Featuring a portable design with a foldable base and detachable handle rod, this trolley is easy to store and carry wherever you go Specification: Material: Aluminum Alloy, PP Size Chart: Black: 28cmx21cmx43cm/11.02inchx8.27inchx16.93inchPurple: 23.5cmx16.5cmx43cm/9.25inchx6.50inchx16.93inchPink: 24.3cmx15cmx44cm/9.57inchx5.91inchx17.32inch Package Includes: 1 Backpack Trolley Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.