Dimensions: 34.5x20x51cm/13.6x7.9x20 inch Large Capacity:   Multiple and thoughtful pockets and inner compartment; A convenient feature to keep personal belongings organized and keep track of them High Quality：With strong metal zippers pullers, easier to grip and control. Lightweight and durable material, provide great protection against dust, tear-resistant, scratches, and abrasions for the Bag Logo: Exquisite embroidery logo Function Details as blow: 1>Large main compartment with integrated padded laptop sleeve; 2>Organization pocket in front pocket, it is Convenient for you to organize and carry your pencils, pens, note book or mobile phone and cables. 3>Inside setting adjustable trolley 4>Wheels with plastic support for easily bring 5>Ergonomic straps used as a backpack 6>Good quality for the tarpaulin bottom 7>Reflective fabric in first compartment for protection; Pattern printing: Exquisite pattern printing for your choice, Exclusive design, durable, unique and fashion, best gift for your friends or children Important usage tip: keep the straps tucked inside the back zipper pocket when not in use, DO NOT wobble the rod