5 Blade Shaving Surface Technology…has 5 Powerglide Blades Spaced Closer Together To Helpeduce Pressure - With Less Irritation And More Comfort Than Mach3 And Mach3 Turbo Enhanced Indicator Lubrastripeleases Lubricants Over Time Providing Great Glide; Then When You’re No Longer Getting An Optimum Shave It Fades To White Indicating It May Be Time To Change The Blade 1 Precision Trimmer Blade …built Into The Back Of The Cartridge; Perfect For Tricky Places Like Sideburns Under The Nose And Around Facial Hair Flexible Comfort Guard Contains 15 Microfins Follows The Contours Of The Face To Help Comfortably Shave Closer Soft Microfins Help To Stretch The Skin Ahead Of The First Blade