Back in the day, there were more than just double edge razors available for us. Besides straights, there were also a few other lesser known like the single blade safety razors. We don't carry them because they aren't made any more, but lucky for those fans of them, the blades still are. We're happy to offer two kinds of GEM blades, both the stainless steel and Blue Star carbon steel. Don't be fooled by those that look alike in the hardware store. They are made for cutting boxes, not shaving. We're sure you can keep those trust vintage single edge razors going for years to come with these.