Folders are specially used to store full-page documents, the main purpose of which is to better save documents and make them neat and standardized. It is a tool for the storage, protection and standardized management of paper documents in business or business activities. Modern business activities are endowed with the function of image display, which can be used to hold all kinds of paper documents, but it is not limited to this. Materials include PP, PVC and cardboard; Some are artificial leather, cloth and the like. The standard A4 file is usually available in the market. There are many kinds of folders, including Dan Qiang folder, double folder, information book, two-inch folder, three-inch folder, double folder with different specifications, single-page folder (also called L-shaped folder), multi-page folder and so on.

Loose-leaf notebook, also known as loose-leaf notebook, consists of cover, loose-leaf binder (or coil) and paper, and pages in the notebook can be removed and added freely. The biggest difference from ordinary notebooks is that loose-leaf notebooks are more flexible to use, the paper can be disassembled, replaced and combined at will, and it is also convenient to organize, and users can also do DIY according to their own preferences. Loose-leaf pages can be used to write notes, take notes and draft. Loose-leaf book is one of the most commonly used stationery in daily work and study, which consists of cover, binder (or coil) and paper. The biggest difference from ordinary notebooks is that loose-leaf notebooks are more flexible to use, the paper can be disassembled, replaced and combined at will, and it is also convenient to organize, and users can also do DIY according to their own preferences. Loose-leaf pages can be used to write notes, take notes and draft.