Product Details Manufacturer's Information on Package:5 Blade Shaving Surface Technology ... has 5 blades spaced closer together to help reduce pressure - for less irritation and more comfort. 1 Precision Trimmer Blade ... built into the back of the cartridge. Perfect for tricky places like sideburns, under the nose, and around facial hair. All Fusion cartridges can be used with all Fusion razors. Fusion handle sold separately.