B5 loose-leaf book. The details are as follows: In terms of paper size, A5 is 148mm×2 10mm, while B5 is176 mm× 250 mm. Therefore, the paper size in question is closest to B5 specification, so B5 specification is applicable. ? It depends on your needs. I usually buy b5 loose-leaf books, because the size is moderate.

Advantages of loose-leaf books

The loose-leaf book is firm and can be turned over repeatedly. Loose-leaf pages can be torn off with notes. The loose-leaf book is flexible to use, and the paper can be disassembled, replaced and combined at will to meet the DIY preferences of users.

Loose-leaf books have various styles, which meet the aesthetic and use needs of different users. Loose-leaf paper can be customized in large quantities, printed with corporate LOGO, and advertised for enterprises. Loose-leaf books are more environmentally friendly. The outer sheath can be used for a long time, and only the inner core needs to be replaced.

It is convenient to write, no wrinkles, and saves money. After use, you can change the paper core and continue to use it, saving trouble. Loose-leaf instinct can write what you want into a series, and you can also customize the U disk loose-leaf rechargeable notebook.