Dull blades
I use a standard safety razor for shaving, and I have been shaving exclusively with the Merkur double edge super platinum razor blades for a few years. So, since those are the sharpest standard blades that I have found, I expected these trimmer blades with the Merkur name to have similar sharpness. Suffice to say, I am most disappointed. These blades are not even close and are actually quite dull.To verify this, I specifically compared the sharpness of these blades on properly prepped skin. Whereas the standard double edged Merkur blade always glides smoothly as it shaves, the trimmer blade catches and hesitates on every single hair.In short, I am quite surprised at how bad these blades are.