5 Feather Hi-Stainless Razor Blades

The Feather razor blades for safety razors and shavette-type free shavers, are Japanese blades manufactured by FEATHER Safety Razor Co.
These razors have the reputation of being the sharpest ever on the market (as per good Japanese tradition), as well as being among the best quality blades available, even if not excelled in terms of amount of shaving possible before they lose their cutting power.