The comfort of 5, the precision of 1. Gillette Fusion razors have 5 blades with shaving surface technology and closer spacing to help reduce pressure and a single precision trimmer blade built into the back of the cartridge for tricky places. Choose the Fusion razor or the Fusion Phenom razor, only the colours are different. ALL Gillette Fusion razor blades can be used with ALL Fusion razors.See also Gillette's Fusion power razors with battery powered gentle micro-pulses for an incredible shaving experience: Click Here