heat and pressure resistance, not easy to damage and deform. Multi-function file folder perfect office school daily use, such as keep school papers travel files documents homework organized and papers or music sheets organization Lightweight music folders designed in capacity separated by 20 file pockets protector, giving spaces for your things, making it perfect for work, business, office meeting, school, travel, storage, outdoor activities, and casual daily use Music sheets folder it just what you needed to to play sheet music without turning ; Ring lay-flat design make you reading more easy and note-taking efficiency hollow-out design is , there is no between the diaphragm in the middle, you can the contents of the inside environmental friendly, nontoxic and non-, not easy to break and deformation. Organizer file folder water resistant, anti-dirty and easy to clean, also looks more deluxe comfortable to carry. Tabs are staggered from left to right for perfect visibility in your vertical or lateral file cabinet Perfect for business, office meeting, school, travel, outdoor activities and casual daily use with this slim document bag, especially for businessman and management executive. portable folder pure durable satchel is perfect with students, musician, violinist, lawyer, office workers, teachers, and other profession. colour:black Material:plastic size:32*26*2.2cm Package Contents: 1* music clip Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.