I have had the previous version of this line for more than ten years. The only reason to buy a new one is because the cork fell off and I lost parts of it making it impossible to put it back on. There is a big difference between this line and the old one; There is a distance of 1/8 inch between the end of the ruler and the beginning/end of the scale. While this makes measurements more accurate when the end of the ruler is turned on, it makes it less useful since you can no longer align the scale. Ruler and edge of what you are measuring to get the measurement.