b5 no hand loose spiral notebook detachable loose-leaf binder a5 loose-leaf inner pages with horizontal lines thickened notebook college student postgraduate entrance examination B5不硌手活页本可拆卸活页夹A5活页横线内页加厚笔记本大学生考研

b5 [horizontal inner core]] b5 [grid core]] a5 [horizontal inner core]] a5 [grid core]] a4 [horizontal inner core]] a4 [grid core]]

[black + white] 2 shell +4 refill/240 pieces [white] 2 shell +4 refill/240 pieces [black] 2 shell +4 refill/240 pieces [black + white] 2 shell +2 refill/120 pieces [white] 2 shell +2 refill/120 pieces [black] 2 shell +2 refill/120 pieces [white] 1 shell +3 refill/180 pieces [black] 1 shell +3 refill/180 pieces [white] 1 shell +2 refill/120 pieces [black] 1 shell +2 refill/120 pieces [white] 1 shell +1 refill/60 sheets [black] 1 shell +1 refill/60 pieces [1 book refill]] [2 books refill]]