A4 Sheet Music Folder: This product of ours is suitable for A4 size files,; the large capacity can store many sheet music or other files, which can better protect your files and Pictures don't hurt. Double-sided Transparent Design: The music clip has a double-sided transparent design, which can be used on both sides. Helps you to classify more easily and search more easily and avoid confusing files. The open pocket design allows you to easily access documents, which is very considerate and convenient. Case Protector: Our music folder is designed with a plastic case, which is hard and firm to protect your important files from dust, moisture and stains. The edges of the shell are neatly cut, the surface is smooth, and the touch is comfortable, so you don't have to worry about scratching your fingers. High Quality Plastic Craft Material: The product is made of high quality plastic material, which is durable, fashionable, waterproof, not easy to break and deform, and can withstand repeated wear and tear. You can lay the score flat on the stand with the cover at a 180-degree angle. Folders do not close on their own when placed on the music stand. Make it easier for you to focus on playing your instrument. Best Assistant for Musicians: This folder helps to neatly store and organize important files. The perfect file manager for home, office, school and business travel, simple and stylish. Provides better assistance for various instrumentalists, musicians, and is the best choice for music lovers to mark or modify staves while practicing.