Tried these,and theyre the worst blades i ever shaved woth,worse than derby extra.Just plain uncomfortable,rough and many weepers..i was all bloodied up,and that never happens to me with any other blades or razors.Did one pass with these,and i had like 7,8 weepers,that i neeverrrr get with 99,9 perc of other blades and razors.Very bad quality blade.