Specifications:

3 pieces

5 pieces

10 pieces

20 pieces

1 Copy (no recommend)

Cover color:

[Relatively thin] 20 pieces including 40 covers in total

[Generally thin] 26 pieces including 52 covers in total

[Normal thickness] 38 pieces with cover, 76 sides in total

[Thickened 1] 48 sheets-including 96 covers in total

[Thickened 2] 58 pieces including 116 covers in total

[Thickened 3] 68 pieces including 136 covers in total

[Really thick] 86 pieces with 172 covers

[Large notebook B5-normal thickness] 40 pieces

[Large notebook B5-thicker] 56 pieces

[Large notebook B5-very thick] 76 pieces