The Gillette Fusion Power razor blade is a precision shaving system featuring an advanced design engineered to bring you optimal performance. On the front of the cartridge, Gillette Fusion Power features 5 PowerGlide blades spaced closer together for a comfortable shave. This design distributes the shaving force across the blades to help reduce pressure, supplying more comfort and less irritation than Mach3. Gillette Fusion razor blades feature advanced 5-blade technology Gillette Fusion razor blades are spaced closer together than Mach3 to help reduce pressure for a close, comfortable shave Gillette Fusion's Flexible Comfort Guard features microfins that follow the contours of your face for a comfortably close shave; Gillette Fusion razor blades feature a precision beard trimmer for those tricky spots like sideburns, under the nose, and around facial hair Gillette Fusion razor blades have a Indicator Lubrication Strip that fades to white when you are no longer getting an optimal shave; All Fusion razor blades fit all Fusion razors (with and without FlexBall Handle Technology)