Usage Tips:Material: Made of non-woven fabric, durable. The color is dark blue, not easy to get dirty and easy to clean. Easy to assemble and fold, save space. Dimension: Each pocket measures 3.9 inches wide and 4.7 inches long for all models of mobile phones and calculators. A total of 30 pockets to meet the storage needs of at least 30 people.Total size is 66cm/25.98inch W x 82.5cm/32.48inch H. 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. 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 the doors, windows and bulletin boards. 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. Colour:Blue Material:cloth Package Contents: 1 x mobile phone storage bag Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.