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The fact is for all the TV ads I saw for these in the 1970s especially, they might as well have been done by the McMaan and Tate Agency from "Bewitched"! It's like every guy gets more or less programed to get these razor blades, even if it's fifty years later! It's not just advertising jargon either. Obviously there is a clear quality basis for the advertising, making them the standard you judge other razor blades by. In the last few months I've used Merker and VD Hagen blades also, and they all have comparable durability and use quality. I expect eight good shaves out of a blade with one full pass, plus some more shaving on my special areas, and these deliver as you would expect. You should find that this is a superb bet razor blade brand which gives you a standard to go by as well.
I'm a barber and these are my go to for any shave service. They are the sharpest I've found and the coating on the blades guarantees a nice clean slip against the skin. They hold their edge well and glide right through the hair.