When I first started shaving with a single blade (Dark Stag folding Kamisori) I bought these amongst others to try. I have to say they are plenty sharp (below feather obviously but close) and have a decent enough smooth feel to them. I'm now on my third pack in 12 months (I'm still trialing lots of blades) They are hands down one of my favourite blades! I keep coming back to them time and again with great results. I can get away with two passes to get a damn near bbs finish. Three passes and I don't need to shave for at least two days! My growth is quite tough.