1Excellent ABS Material: This binder music file folder is made of excellent ABS material, extremely waterproof, which can better guard the sheet music from water damage, and also better guard the inner paper to keep it for a longer time. 2Transparent Inner Pockets: This piano sheet music binder has transparent inner pockets that are non slip and features concave convex technology to reduce reflected light for easy reading of sheet music. 3Transparent Film Clipboard: This music sheet file paper storage folder is made of transparent film clipboard, which can hold the paper stably and not easy to slip, very convenient to use. 4A4 Paper Size: This sheet music binder organizer has an A4 paper size, and each sheet of music has a ring closure to harmonize the neatness of the paper and make it easier to turn pages and read. 5Wide Application: This sheet music folder has a wide range of applications and can be used for a variety of instruments such as piano, guitar and violin, perfect for work or school use, great for presentations, filing, storage, interviews and resumes. 1 xSheetMusicFolder