Design for Easy Modification: Internal pockets are hollow, and with the spiral binding which allows the folder to open 180 degrees flat, you can easily edit your sheet music or files, it also makes storage and storage easier. file access. .Perfect for: You can insert sheet music for choir and piano in it. It is also ideal for holding your paintings or working files, it is very convenient to edit during meetings. .Grade your clean and tidy files: With this A4 plastic folder, you can organize your musical scores and important files well, it also saves you a lot of time searching for what you need. .Size: This storage folder is suitable for A4 size paper, with 30 pages for up to 60 sheets, very suitable for daily document storage in schools or office.