Easy to Install: The bag has 4 metal holes and 4 hooks that can be easily hung on the metal bars at the top of , and bulletin boards. Function: Store and organize your belongings easily, and avoid distractions when using mobile phones in school classrooms and dormitory libraries. Each pocket has a number, helps you find your cell phone quickly. Material: The color is dark blue, not easy to get dirty and easy to clean. Easy to assemble and fold, save space. Widely Used: It can be used in classrooms, libraries, offices, dormitories, workshops, factories, etc., to store mobile phones, chargers, calculators, cards and other personal belongings, so that you can concentrate more.