Gillette Mach3 men's razor blade refills feature stronger-than-steel blades that stay sharper longer. With sharper blades, it is engineered to last for 15 comfortable shaves. These Gillette razors feature a lubrication strip that glides to help protect your skin from redness and a micro fin skin guard that stretches the skin and prepares hair to be cut. Mach3 men's razor blade refills fit all Mach3 razors. Gillette Mach3 gives a better shave than a new 2-bladed ordinary razor even after 5 weeks. Gillette Mach3 gives a better shave than a new 2-bladed ordinary razor even after 5 weeks. Three high-definition imported blades for superior glide and comfort. Comfort guard with 5 micro fins for a closer shave. For an incredible shave, use with Mach3 refills and Series Sensitive shave gel. The indicator lubrication strip fades to white when you are no longer getting an optimal shave, and the ergonomic handle gives great control.