stiff, thick and durable, tear take convenient for study, office, etc. loose-leaf notebook paper on one side of the marked hole, depending on the number of holes binder, using the corresponding holes in the loose-leaf paper. likes DIY users can also punch their own hands, to meet their different needs. Loose-leaf notebook of this size 5 size loose-leaf notebook sizes commonly used in a variety of sizes A5, B5, A4, B6, and so on. Loose-leaf notebook of different sizes to meet the needs of different types of users, a small loose-leaf notebook you can carry in your pocket to use as notes the same, which can easily tear a page to use. 6 loose-leaf notebook style loose-leaf notebook style is rich and diverse, buckle, buckle, and still do not buckle, rich style loose-leaf notebook to increase the number of colors. 7 loose-leaf notebook with the ordinary distinction loose-leaf notebook notepad there Binder fixed, robust, secure, can be repeatedly turned together. While the ordinary loose-leaf