6-Wheel Trolley Backpack 3-Piece Set Black and Blue

Durable and spacious school trolley backpack set designed for climbing stairs, ideal for middle school students. Includes a multi-layer breathable design for everyday use. Highlights 3-piece set: backpack, trolley base, and accessory bag 6-wheel stair-climbing trolley system Breathable multi-layer back panel for comfort Large capacity ideal for books and school supplies Stylish black and blue galaxy-like pattern