Versatile and Spacious 3-Ring Zipper Folder: It has plenty of space with multiple compartments to fit everything for school, office and work. These compartments have different functions, so this folder can keep your school supplies super organized inside, just like storing pens, pencils, a 13-inch laptop, cell phone, chargers, cables, calculators and a lot of things in different areas, it also keeps your papers together. Durable Material and Heavy D-Rings and Buckle: This zipper folder organizer is made of sturdy and durable polyester fabric, which is spill-resistant. The metallic D-ring base plate is reinforced with microfiber PU, which improves the bond between the D-ring and the bag to prevent it from falling off. The metallic buckle can withstand up to 350 pounds of tension, which fully ensures the performance of the shoulder strap during use. Zipper Folder School Supplies - Focus on zipper folder manufacturing, based on the suggestions we received, we designed a professional school folder in 2024, which provides special organizing compartments for stationery, larger capacity, higher quality! (Note: Only recommended for children over 3 years old.) Zipper Folder with Shoulder Strap - The 3-ring zipper folder comes with a removable shoulder strap with thicker padded padding and handle for versatile and comfortable carrying. Reduce the pressure on the shoulders and let children relax to school. (Adjustable strap length: 75-140cm suitable for students of all ages) Professional 3-Ring Zipper Folder - Equipped with special functional compartments to support lots of necessary school supplies. The outer pocket is easy to carry with frequently used items; design with pen compartment and calculator compartment Color: Black Material: Polyester Package Contents: 1 x Zipper Folder Only the above package contents, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.