The "Professional Super" blades are designed for those with a heavy or coarse beard. Blade performance is equal to that of a traditional straight razor: a bit more aggressive to meet the demands of a tougher beard. In addition to a greater blade thickness the blade is also a bit wider allowing greater edge exposure. If you have a tough beard and want to delay the appearance of five o'clock shadow until well after sunset, the "Professional Super" blade is your choice.
Blade Thickness: 0.31mm. Blade Exposure: 1.45mm. Blades are packed in their own injector-style dispenser for fast, easy, and safe blade installation and convenient storage. The Feather AC blades fit ONLY the Feather AC straight-style razors!