Product information: 

Koalakits36 offers a convenient Trolley School Bag and Elementary School Bags for Elementary School Students, ensuring comfort and style for young learners.

Trolley School Bag, Elementary School Students Children, Size: 45*32* 1 5(CM) 
Color: pink
Structure: main bag*1 secondary bag*3 side bag*2
Grade: Grade 3-6
Weight: 0.8KG
A: 2 rounds, B: 6 rounds [stair climbing], C: full powder 6 rounds [stair climbing]], D: 6 rounds on high feet [safe climbing stairs]], E: small suit, F: silent large 2 rounds [Easy to climb the stairs]]