Double edge razor blades from Astra. These razor blades can be used in a safety razor / scraper.
These blades were initially produced in the Czech Republic. However, after Gillette bought the Czech Astra, production was moved to Russia. They are very sharp blades with a very long life.
Astra Superior Platinums are more aggressive than most blades, but unless you have sensitive skin you might like the sharpness.
Astra double edge blades are individually wrapped in paraffin paper in a box of 5 pieces.