Strong steel rulers with clear markings.
These are great rulers.  They are not too thin so they don't bend easily.  The measurement markings are in very clear black ink and are stamped into the steel so they won't wear off.  Also the markings are printed on both sides of the ruler.  Very good price - only drawback is they are a little sharp on the edges, but I have never found a steel ruler that wasn't.
Rating: 5 stars