Large-capacity practical combination: backpack can hold books and computers, lunch bag aluminum foil insulation, pencil case storage stationery, to meet the needs of multiple scenes.Durable and easy-to-clean material: wear-resistant fabric, waterproof and anti-fouling, reinforced zippers and edging, strong and durable, easy to clean.Intimate detail design: the backpack is scientifically layered, the lunch bag is comfortable to carry, the pencil case is easy to access, and the use is more worry-free.Scientific specifications: backpack: 30*17*40cm, lunch bag: 20*13*22cm, pencil case: 20*7.5*10cm, practical storage.