Kartasi offers a range of Side spiral notebooks in various sizes and sheet numbers that is suitable for different purposes. Ref 482-484: 70 perforated sheets | A6, A5 & A4 Sizes Clear plastic covers Ref 476-479: 80 sheets | A6, A5 & A4 Sizes | Clear plastic covers Ref 412: 50 sheets | A4 Size | Chipboard cover Ref 473: 40 sheets | A6 Size | Chipboard cover Ref 407: 40 sheets | A6 Size | Top spiral | Chipboard cover