When I first got my Van der Hagen-Weishis, I bought a 10-pack of these blades for a dollar even. I don't know if I got a bad pack or if it was only the one I tried out of the container, but I ended up nicking myself all over with these and my face was irritated half the night. Even the typically dull VDH blades were better than the Dorco Prime Platinum. I don't expect to try these again now that have my Astra SPs and a sampler package to try out.