Mach3 razor blades are among the world’s most iconic. Loved by men around the world, Mach3 has been rated the world’s No. 1 3-bladed razor*. Each cartridge contains 3 of Gillette’s renowned stronger-than-steel blades, designed to stay sharper for longer and offer a classic smooth shave. With one Mach3 cartridge, you can comfortably shave up to 15 times.