Spah! And the paper can be cut cleanly; Features: A ruler that allows you to cut paper neatly by pulling it along the guide lines. Easily cut out magazines pages, papers, and papers without needing to be documents. When stretched, it can be approximately 11.8 inches (30 cm), so it is easy to cut A4 paper or other items. When folded, it is sized to fit in a pencil case for easy carrying. Adopts a new mechanism of double hinges, so it becomes right angle when open 90 degrees, making it convenient for drawing lines. The pointed tip of the ruler is safely processed so you can use it with confidence. [How to use] (1) Align the initial cutting position to the end of the guide line printed on the ruler. (2) Roll the paper and pull it towards the arrow direction of the guide line. Press the ruler firmly with your left hand.