The Gillette Mach 3 Blade is a legend amongst modern day cartridge blades, with a rumoured $750 million spent on research & development costs. The cartridge with three blades positioned closely together allows for a closer shave with less pressure & few strokes, resulting in reduced irritation. Each Mach 3 blade has a patented DLC comfort edge cutting through hair easily. A green skin-lubricating strip on the blade gradually fades to white, to indicate when your Mach 3 cartridge may no longer be providing its optimal shave. The open cartridge architecture allows for easy loading of new cartridges & easy rinsing. Contains: 8 x Gillette Mach 3 Blades.