The Most Usually Materials Of This Kand Subject Note Book Is Pp To Be Made Of The Cover, And 60gsm – 70gsm White Paper To Be Made Of The Inner Paper, And There Is A Divider In Every 50pages To 100pages, And This Note Books Mostly Stapled With Wire-O Spirale, As This Kind Book Is Normally Thick. Customer Can Also Use The Material With Needing.This Kind Of Writing Book Is Mostly Using In Office.