There are many sizes and specifications for loose-leaf books. Commonly used sizes are A5, B5, A4 and so on. According to individual preferences, users can choose loose-leaf books of different sizes.
The different sizes of loose-leaf books meet the needs of different types of users. For example, small loose-leaf books can be carried in pockets and used, just like the notes, can be easily torn off one of the pages.
The loose-leaf edition has a variety of styles, including buckle, button, and non-buckle. The rich style adds a lot of color to the loose-leaf edition.