Everybody knows what a ruler is, a instrument with a straight edge, used for making precise drawings and measure certain distances.

To help you get your pattern perfect you need three types of rulers:

• Straight long rulers.
• Protractor (For the right angles on the Pattern).
• French curves (French curves are curved rulers in different sizes and shapes, which will help you to shape the pattern right when you connect lines etc. It is also known as Burmester set).