Gillette mach3 manual razors for men features stronger-than-steel blades that stay sharper longer (vs. Sensor3). With sharper blades (first 2 blades vs. Sensor3), it is engineered to last 15 comfortable shaves. These gillette razors feature a lubrication strip that glides to help protect your skin from redness and a microfin skin guard that stretches the skin, and prepares hair to be cut. The mach3 men’s razor features a premium handle, expertly balanced and weighted for a great shaving experience. Mach3 manual men’s razor fits all mach3 blade refills.features: gillette razors for men with stronger-than-steel blades stay sharper longer (vs. Sensor3) each razor blade refill is engineered to last for 15 comfortable shave men’s razor cartridge features sharper blades (first 2 blades vs. Sensor3) lubrication strip glides to help protect your skin from redness advanced skin guard helps stretch your skin, and prepares your hair to be cut.