LANSHIYA Boys Rolling Backpack Elementary Middle School Students Bookbag with Wheel Teens Trolley Removable Schoolbag, B-black&red, Style-b

Durable: The school's roller backpack is made of high-density waterproof material to prevent accidental splashes. The inner material is composed of durable polyester, which makes the backpack durable. The sturdy material also extends the life of the pack.
Large Capacity: The backpack consists of a large capacity main pocket, a zippered sub-pocket, three zippered front pockets and two side water cup pockets, the main pocket can store snacks, books, lunches and school supplies, and the sub and front pockets can store small object. The large-capacity design enables most children's daily necessities to be filled.
Backpack size: 12.2"x 7.8"x 19"(L*W*H)/32cm*20cm*49cm(L*W*H), suitable for elementary school students and short trips.
6-wheel design makes it easier to climb stairs; the trolley can be used separately; it helps your child reduce the burden. If your student doesn't want a trolley, just remove the lever and it becomes a regular school bag.
Comfort: The unique rubber roller design reduces the resistance and vibration when pulling the schoolbag up the stairs, and reduces the hand discomfort caused by excessive pulling force on children.