heat and pressure resistance, not easy to damage and deform.Multi-function file folder perfect for home office school daily use, such as keep school papers travel files documents homework organized and papers or music sheets organizationLightweight music folders designed in large capacity separated by 20 file pockets protector, giving independent spaces for your things, making it perfect for work, business, office meeting, school, travel, storage, outdoor activities, and casual daily useMusic sheets folder it was just what you needed to able to play sheet music without turning pages; Ring lay-flat design make you reading more easy and note-taking efficiencyCenter hollow-out design is convenience, there is no barrier between the diaphragm in the middle, you can feel free modify the contents of the insideenvironmental friendly, nontoxic and non-radioactive, 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 cabinetPerfect 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:blackMaterial:plasticsize:32*26*2.2cmPackage Contents:1* music clipOnly the above package content, other products are not included.Note: Light 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.