I have two problems with the rulers sent to me. One with QC company. Another with the product itself.1. My ruler arrived with an odd white hole in the middle. It's very distracting when you use rulers like I do to edit novels, fiction, and essays to make a living. The numbers and dimension lines are printed on the outside of the plastic. It's an understandable production compromise, but given that the numbers and lines will be gone within a few years.