Gillette Mach3 Plus blades offer a classic close shave with 3 DuraComfort blades for long-lasting comfort. The lubrication strip helps protect your skin from redness, and the advanced skin guard stretches your skin for a smooth shave. Compatible with all Mach3 razors. Key Features Classic close shave 5 blade refills Male refillable blades Duracomfort technology Lubrication strip for added comfort Cross-compatibility with Mach3 handles Key Materials: Stainless steel blades (3); Lubrastrip (long lasting comfort strip).Gillette: Leading in shaving technology, known for precision and comfort.Replace Cartridge: Press the release button on the razor handle to remove the old cartridge. Snap the new cartridge onto the handle until you hear a click.Blade Warning: Handle with care. Keep out of reach of children.