Gillette Fusion is the only shaving system that has new advanced technology applied to the front and back of the cartridge. The 5 Blade Shaving Surface'½ technology has 5 blades which are spaced closer together, reducing pressure on the skin for ultimate comfort. The Precision Trimmer'½ Blade is built into the back of the cartridge, making it ideal for those tricky spots like sideburns, under the nose and around facial hair. The Enhanced Indicator Lubrastrip has vitamin E and aloe, and fades to white when you are no longer getting your optimal shave. The Flexible Comfort Guard gently sets up the beard to help comfortably shave you incredibly close. Unique to Gillette Fusion are an improved forward pivot and an ergonomically designed handle. For use with Fusion or Fusion Power razorsContains 4 x cartridges Experience the power of Fusion.