I picked up a batch of these from the Bay, paid some 6 dollar cents per blade. Might be nos. 200 in a pack, 10 in a cardboard box. It is a coated carbon blade. Decided to give them a go in my new Feather AS. A nice, smooth and close shave. I only do 2 passes (WTG and XTG) and the blade was sharp enough for that (coarse beard). Results for me a lot like Feather . So I will use these as my daily blade, and Feather for the weekend. I change blades after 2 shaves (one per side), so longevity is n/a for me.