It takes about 9-15 days for the product to be shipped from China. This is a 4-piece school bag. The backpack is mainly made of nylon fabric reinforced with polyester and uses high-quality materials to create high-quality products. The nylon shell is waterproof and not easy to get dirty. The bag has a large carrying loop design and you can usually carry it out. The design of the bag has a large capacity and can hold a computer, books and water at the same time. It is a good helper for school and travel.