ABS outer shell with patterns of piano keys and musical notes on the surface, durable and attractive. Transparent and water-repellent inner pocket, concave, convex surface, protects the sheet music from creasing and creasing. With 40 pockets in A4 size, large capacity and suitable for storing standard music papers or other documents. A great helper for instruments, musicians, students, office workers, etc. Light, transparent cover, flexible. Good choice for music lovers. Product description Color: Cartoon File Folder-Black Product weight: 250 g. Item size: 31 x 23.5 x 2.6 cm. Transparent and water-repellent inner pocket, 40 inner pagesFor holding notes, files etc. Ideal for instrument players, musicians, office, school and home etc.