Mutliple Functions ,it can be used to put music scores, used as a piano room teaching, to mark points at any time. You can keep your documents, files, bill, letter, test paper, agreement, contract, receipts, vouchers, tests , notebooks, pictures etc. It is a must have file organizer for home, office and school. 30 pockets 60pages, it can easily divider folders and organize files, is a portable and expanding accordion document and papers organizer. Books folder helps you to display your documents in order which saves your time as its arranged well in the folder & you can find it easily. Music holder designed for protecting your music papers from wrinkling and keeping them in good order. A great assistant for instrument players, musicians, students, office workers, etc. Color: Black. Material: Plastic. It can protect your files from damaging and folding. Idea for home , office,art, school, travel, business trips or file papers. Product size: 32 x 24 cm,Used for A4 size or other subsize.