This razor features 5 precision blades designed to reduce pressure per blade for a smoother shave (vs. Mach3). A back edging blade helps with detailing tricky areas like the nose and sideburns. Each blade refill lasts up to one month of shaves. Compatible with all ProGlide, ProShield, and Fusion razor handles, it offers a reliable and comfortable shaving experience with every use, keeping your grooming routine sharp and effective.