When I tried these rulers for measuring my industrial and scientific projects, I was impressed with their accuracy and sturdiness. The different colors of the rulers helped me in identifying the correct measurements easily. The rulers also have clear and bold markings that made it easier for me to get precise results. However, the only downside is that they may not be suitable for measuring larger objects due to their size. Overall, it is a great product for those looking for reliable measuring rulers for their industrial and scientific needs.