Use Feather Professional Super blades to manage that tough beard. A thick, wide blade with a fair edge exposure, it will produce longer-lasting results, prolonging the time between shaves. Mimics the performance of a 6/8" to 7/8" straight razor. Feather Professional Super Single-Edge Razor Blades are designed for use with the Feather Artist Club Maintenance-free straight razors. Feather's exacting standards guarantee a close professional shave every time. Dispense blades directly from their injector package, which is also equipped with a disposal chamber. Blade thickness: 0.31 mm Blade exposure: 1.45 mm Made in Japan