ProGlide Razor Blades have five of Gillette's sharpest and thinnest (first 4 blades) anti-friction blades to get virtually every hair. The soft microfins before the blades gently stretch and smooth your skin, while a microcomb helps guide your hair for a close shave. An enhanced Lubrastrip with even more lubricants (vs. Fusion5) helps the blades glide across your skin to make sure your shave is extra comfortable.