①No.VC19:4Pcs/Set Iron Rule: 15cm Straight Ruler + 30° Triangle Ruler + 60° Triangle RUler + 180°Protractor.
②No.VC20:4Pcs/Set Iron Rule: 20cm Straight Ruler + 30° Triangle Ruler + 60° Triangle RUler + 180°Protractor.
Accurate scale:
both sides of the protractor can measure 0-180 degrees, and the scale is accurate to 1 degree, helping you to quickly measure the value; Triangle and ruler , you can use them to measure, draw geometric figures, parabola, etc., providing you with large convenience .
