Customized imitation leather notebooks have several conventional sizes, but the finished size specifications of loose-leaf and paperback (hardcover) will be different, because the same specification of writing paper is made into a finished notebook. The size of the inner core paper is about the same size, but it will also be slightly larger than the inner core size so that the outer shell wraps the inner core; the same specification of the binder is assembled on the side of the book, so the finished product specification is after the binder is added. The size will be 1-3 cm larger. The following are the specific sizes of the regular loose-leaf notebooks and hardcover notepads we use every day.

Loose-leaf notebook regular size:
16 open (B5) finished product size: 21CM*27CM  
Inner page specification: 180*260MM;
32 open (A5) finished size: 17.5*23CM  
Inner page specification: 142*208MM;
48 open (B6) finished product size: 13CM*20CM  
Inner page specification: 92*172MM.

Hardcover Notepad (Paperback Notebook) Regular Size:
16 open (B5) finished product size: 20CM*26.5CM  
Inner page specification: 188*260MM;
32 open (A5) finished product size: 15CM*22CM  
Inner page specification: 142*208MM;
48 open (B6) finished product size: 10CM*18CM  
Inner page specification: 92*172MM.