Lalawow Cute Lovely Boys Girls Waterproof Nylon School Backpack Schoolbags with Wheeled Trolley Hand, Luggage Bags, Kids Travelling Bags, Hiking Bags, Shoulder Bags for Pupils Primary Students (Rose) 3 modes (17.6-36inch) adjustable aluminium alloy pull rod, rubber crystal wheel, durable ABS tray Size(Hx Lx W):18.4 x 12.8 x 6.4inch / 46 x 32 x 16cm,perfect for pupils and primary school students. 7 different pockets in total,including 1x main bags,1x inner bags,2x outside bags,2x side net bags. max load-bearing 45KG, make the spine more health to grow and protect it from heavy weight. 3 modes length (one stretch for 17.6inch, two stretch for 27.2inch, three stretch for 36inch)