High-quality materials: This Mach3 razor uses 3 layers of high-quality inductive nano-blades. The blades are treated to ensure a smooth shave. Front Hinge Technology: Front Hinge technology provides greater angular flexibility, and the sensor head, which fits facial curves like water, provides a cleaner shave. The front pivot transfers the pressure from your hand away from the blades for better skin comfort. Mach 3 Razor Blade Refills: 3-layer razor blades for men are universal, convenient, and fast to meet your needs, the elastic sensor blade helps detect subtle waves on facial skin. Anti-clogging design: Anti-clogging design for quick rinsing. This razor uses 3 layers of high-quality inductive nano-blades. The blades are treated to ensure a smooth shave. Package includes: 4 sets, one set with 4 sheets, total 24 sheets