【Brand New, Unused】 To prevent damage to the box, the item will be shipped without removing it from its original packaging. Shipping is planned within approximately 3 days after payment confirmation. 【Strong School Backpack from its Basic Structure】 Shape-retention reinforcement. Shape-correcting resin is used in the main compartment, called the "O-machi," where textbooks are placed, and a steel core is built into the center to protect the backpack from deformation and folding. 【Suitable for 1st to 6th Graders】 Wide in both length and width, it can easily accommodate textbooks, notebooks, and A4 flat files! Even for lower grades, there's no need to cram, and textbooks and notebooks won't get crumpled. Main body size: H33 x W25 x D17cm (main storage compartment) Weight: approx. 1100g Interior = synthetic leather, Cover underside = synthetic leather, Automatic lock 【Exquisite Balance of Strength and Lightness】 The strongest model using Tough Rock, an artificial leather boasting overwhelming durability. The speedy design and cool coloring are accents. Simple, functional, and safety-designed. 【School Backpack Collaboration by a Long-Established Manufacturer】 "Cool for 6 Years" This school backpack achieves lightness and a simple design, meticulously crafted by skilled artisans from a long-established factory, paying attention to every detail.