Feature: 1. Excellent PP Material: This sheet music binder is made of excellent PP material, which is sturdy, waterproof, tear resistant and not easy to warp, you can easily organize and protect important sheet music or other paper documents. 2. Dual Spring Design: This sheet music holder features a dual spring design that allows it to expand 180 degrees and lay flat on the piano music stand, providing a comfortable viewing angle. 3. Writable: This sheet music folder covers only the top and bottom of the sheet music, the sheet music holder is non reflective, making the sheet music clearer and preventing eyestrain while playing, allowing writing directly on the sheet music. 4. 60 Pages Capacity: This music sheet file folder holds up to 60 pages, which can be used to store sheet music, drawings and other documents, suitable for A4 size paper. 5. Wide Application: This music sheet file paper storage folder has a wide range of applications and can be used for bands, orchestras, and school choirs. Specification: Item Type: Sheet Music Folder Material: PP Inside Page: A4 Paper Size Functions: Changeable Sheet Music, Non Glare, 2 Page Continuous Expansion. Package List: 1 x Sheet Music Folder