Make sure you are always stocked up on Gillette Fusion Manual Refill Cartridges. Gillette Fusion offers every man, whether clean-shaven or with facial hair, a wonderful way to shave. Gillette Fusion features a 5-blade Shaving Surface technology on the front of the shaving cartridge. The blades are spaced 30% closer together than the Mach3 razor family. This creates a shaving surface that distributes the shaving force across the blades, including a Lubrastrip which fades from green to white, signalling when shave conditions have been reduced. The Precision Trimmer blade is a single blade built into the back of the cartridge. That’s a great shave.