Lalawow Healthy Design 2 in 1 Sturdy Separable Boys Girls Waterproof Nylon School Backpack with Wheeled Trolley Hand, Luggage Bags, Kids Travelling Bags, Hiking Bags, Shoulder Bags for Pupils Primary School Students (Pink) 3 modes (17.6-36inch) adjustable aluminium alloy pull rodrubber crystal wheel, durable ABS tray 7 different pockets, including 1 x main bags, 1 x inner bags, 3 x middle bags, 2 x side net bags. max load-bearing 50KG, make the spine more health to grow and protect it from heavy weight. Size:13.6inch x 7.2inch x 17.6inch(L x W x H) Adjustable pull rod fit for different sutdents.