Gillette Fusion features a breakthrough 5 blade Shaving Surface technology on the front of the shaving cartridge. The blades are spaced 30 percent closer together than MACH3 blades. This creates a “Shaving Surface” that distributes the shaving force across the blades for significantly less irritation and more comfort. Features: •5 Blade Shaving Surface Technology…has 5 blades spaced closer together to help reduce pressure – for less irritation and more comfort. •1 Precision Trimmer Blade…built into the back of the cartridge. Perfect for tricky places like sideburns, under the nose, and around facial hair. •The best shave ever. All Fusion cartridges can be used with all Fusion razors. 8 blades