Product No 
Multi-Function Ruler 12cm : R-4001
Multi-Function Ruler 13cm : R-5001
Multi-Function Ruler 14cm : R-5002

Specification 
Multi-Function Ruler 12cm : 12 × 2.7 × 0.2 cm
Multi-Function Ruler 13cm : 13 × 3 × 0.2 cm
Multi-Function Ruler 14cm : 14 × 4 × 0.2 cm
 
Product Features 
Multipurpose ruler that allows drawing of circles without a compass. Dotted lines can be drawn easily as well.

Press the rounded handle with the left thumb in the center and insert a pencil or pen into the holes spaced evenly using the other hand and turn to one side to make circles.
And insert a pencil or pen inside the holes placed in a straight line to make dotted lines and dotted chain lines.

Additional Information