Plastic Measuring Rolling Ruler, Pack of 2, Multifunctional Measuring Rolling Ruler Drawing Roller Ruler, Parallel Ruler for Measuring, Drafting, Student, School, and Office, 12 Inches

Material: Plastic Color: Clear Length 12Inch/30cm Width 2.4Inch/6cm Package Included: 2 x Measuring Rolling Ruler How to Use: Align the center of the protractor on the edge of the ruler with the vertex of the surveying foot, and at the same time, coincide the scale of the protractor with the datum line, then various angles can be measured on the edge of the ruler. For example: Insert the pin into the small hole at the ruler end to make the center of the circle, insert another pen into another hole and rotate the ruler body 360¡ã to draw a circle. If the radius between the 2 holes is different or the rotation ruler body is different, different circles or arcs can be obtained. [Drafting Ruler AS a Nice Gift] Whether you are an artist, student, pattern maker, or designer, this measuring rolling ruler is a good helper for your work or study; It can help students develop their own manual skills as well as their imagination to draw different design pictures. [Parallel Glider Service Gurantee] This Measuring Rolling Ruler come complete with a 3-Month warranty. Our department Usually does a 100% quality inspection on the Measuring Rolling Ruler before delivery. We will refund if the Measuring Rolling Ruler is defective. If you have any problems, feel free to contact us.