trolley backpack easy to carry with shoulder strap or with trolley. can use in the day use or to school. can load laptop, trolley backpack easy to carry with shoulder strap or with trolley. can use in the day use or to school or camping hiking. can load laptop so can use in the business trip.Place of OriginZhejiang, China (Mainland)Model NumberB05167MaterialPolyesterCapacity30 - ...