Gillette Mach3 men’s blade refills deliver a close shave, without all the redness while feeling better after the 10th shave than a new disposable does on the first (vs. Sensor2 Plus disposable). A lubrication strip glides to help protect your skin from redness, while an advanced skin guard helps stretch your skin, and prepares your hair to be cut. Mach3 blade refills fit all Mach3 razors.