This set of four Gillette Fusion Proshield razor blades for men is designed to last up to four months. Each cartridge holds five individual thin blades for an amazingly close shave. A tiny comb guides hair into the blades. The attached trimmer on the back of each cartridge reaches tight spots, such as around the nose. Lubrication strips moisturize the skin for less friction while shaving. A chill feature cools the skin. Fusion Proshield blades fit onto Gillette Fusion razors.