The Gillette Fusion Manual Blades 4S features a precision trimmer on the back, ideal for hard-to-reach areas and styling facial hair. A lubrication strip helps maintain an optimal shave, fading when it's no longer effective. Each razor blade refill provides up to one month of shaves. These refills are designed to fit all Fusion5 and Fusion5 Power razors, making them a convenient option for those who already own these models. The pack includes 4 Fusion5 razor blades, each with 5 anti-friction blades for a smooth shave.