Usually I use Merkur blades, but I saw these available and figured, "I'm sure they'll be fine." The blades felt dull; they were flimsy, and a couple of the blades in the pack had grime on them when I opened them. My skin was irritated like never before and I got more small cuts than I had from my safety razor since...well, ever, really. Immediately, I hopped on Amazon and ordered a pack of the Merkur blades.