Gillette Fusion Power men's razor blade refills each have 5 precision blades spaced closer together (vs. Mach 3) for less feel of irritation & incredible comfort. Fusion Power blades have a Power Glide blade coating that provides incredible glide & comfort. Each blade refill also has a Precision Trimmer on the back, great for edging tough areas such as under the nose & sideburns. One razor blade refill equals up to one month of shaves. These Fusion Power blade refills can be used with any Fusion razor handle.