A4 note paper book
A5 note paper book
A6 note paper book
A7 note paper book
3.5 inch note paper book
size 21.0 cm. x 29.7 cm.
size A5 14.7 cm. x 20.9 cm.
size 10.4 cm. x 14.7 cm.
size 7.1 cm. x 10.2 cm.
size 3.5 inch x 3.5 inch