The following are the measures. Taking measurements is very simple:

1. choose the section to be measured;
2. see from the picture the letter of the section and the distance to be measured (represented by colored line), compares the desired section sizes and compare them with a boss who uses (only way to not get it wrong size)
3. found in the attached table of measures, the measure in centimeters;
4. play it! you're ready to buy!