Men's Gillette Mach3 Charcoal razor blades contain three blades that are three times stronger than steel and an improved lubrastrip that has been impregnated with charcoal to provide more lubrication for a close shave. The razor is designed to not only offer a smooth glide but also to leave your face feeling clean and fresh after shaving. It is made to last for 15 smooth shaves and has premium stainless-steel blades. These Gillette razor blades have a micro fin skin guard that stretches the skin and makes the hair ready to be cut, as well as a lubrication strip that glides to help prevent redness on your skin. All Mach3 razors may use the Mach3 men's razor blade refills.