Big storage capacity with multi pockets:1 large main pocket with 1 compartment;2 zipper front pockets for IPAD/A4 size items;2 mesh pockets for water bottles;1 special pencil case which can hung on the backpack;1 lunch bag with adjustabel straps which can be as shoulder bag or a handle bag.
Size:backpack: (40 x30 cm),lunch bag:(25x22 cm),pencil case:(22x12 cm),highest height of trolley is Xcm;Multi-function for kids,as a suitcase to reduce load,or as a backpack,or a handbag with a handle on the top of backpack.
Noiseless 2 wheels design with high-strength aluminum alloy rod.
High quality Nylon material made, water resistant and durable, breathable back and padded shoulder Straps, they greatly reduce the pressure in the back and shoulder.( This bag can be removed separately )