Three-piece primary school backpack pencil Elementary school backpack Basic conditions Capacity: 20-35L The internal structure of the bag: zipper pocket, cell phone pocket, ID pocket, computer pocket D method 'opening: zipper: PolyesterFunction: breathable, wear-resistant, brighteningDerity: medium to softPattern: Cartoon Spinning texture: polyestertrap Root number: double rootCar part: soft handleCar door behavior: bag three-dimensional bag: section vertical square Carrying system: curved shoulder strap The shape is very suitable for some children who go to primary school with unique style Pockets on both sides can hold umbrellas and water glasses Main bag: can be put into A4 books Compartment integration: can hold cellphones, stationery, keys and other items. A4 backpack, purse and pencil case: Backpack: length 30cm, width 17cm, height 40cm Handbag: length 26cm, width 18cm, height 6cm Bottom package: length 20cm, width 8 cm, height 4 cm