Splicing inclined seesaw ruler
prismatic section: with seesaw properties. After pressing forward and warping, accurate reading; After pressing forward, the pen beads will not contact the edge of the ruler, reducing paper pollution. And it is easy to pick up "right" and "opposite" to the desktop.
The upper part is translucent, and the scale is below to ensure the accuracy of the reading; the lower part is non-transparent, wear-resistant material, and the scale is on the top and used when cutting.
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