The "Professional" blades are designed for an average beard. Blade performance is equal to that of a traditional straight razor. The thinner blade allows greater edge flexibility to better conform to facial contours. If you have an average beard and want the closeness of a barbershop straight razor shave the Feather "Professional" blade is for you.
Blade Thickness: 0.254mm. Blade Exposure: 1.2mm. 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!