- Brand: Xie Hai Court
- Item: parallel feet
9.8 yuan, 包邮 ruler ~! Ruler production process friction with each other, but does not affect the use.
Baby with a few will also have traces of mind please do not shoot Oh ~!
Different batches, the middle of the roller color depth of the gap!
Name: Parallel feet
made in China
◆ 30CM long multi-function feet
Instructions for use:
First, the use of protractor
Align the protractor of the ruler with the angle of the vertex, and then align the protractor with the reference line.
Second, the brush and arc curve
Insert the pen into the center of the hole at the end of the ruler, insert another pen in the other hole, rotate the ruler 306 degrees, you can draw a circle, the radius between the two holes or different rulers, you can get Different circles or arcs.
Third, draw horizontal parallel lines
Press the ruler in the hand, along the ruler can draw a horizontal line, and then move up and down the ruler, you can draw the horizontal line between the parallel lines in the counting window on the scale that.
4, painting vertical parallel lines
Insert the tip of the pen into the small hole of the ruler, slide the ruler up and down to draw a vertical parallel line; its length can be indicated by the scale line in the counting window.
Fifth, the use of vertical ruled line drawing of the function, you can easily draw a variety of graphics to develop thinking.