When I first received the package, I was thinking there were a lot of razors in the box. I then tried to connect a razor blade to the handle. It was a little difficult to "click" it together. Then I tried it and compared it to my Mach 3 blade razor that I have used for years. The new blades felt dull and actually was a little painful to shave with. I did one side of my face with these new ones and the other side of my face with the Mach 3. The Mach 3 side was very comfortable. In short, I will try to return them because of the discomfort of the shave.