Here are the key features of these blades:

5-Blade Technology: The cartridges are equipped with five precision blades that are spaced closer together than previous generations of Gillette razors (like the Mach3). This design helps to distribute the shaving pressure across the blades, which can lead to less irritation and a more comfortable shave.

Precision Trimmer: A single blade is located on the back of the cartridge. This precision trimmer is ideal for shaving tricky areas like under the nose, shaping facial hair, and trimming sideburns.

Lubrication Strip: The blades feature a "Lubrastrip" that releases water-soluble lubricants onto the skin with each stroke. This helps the razor to glide smoothly. The strip also fades from green to white over time, indicating when it's time to change the blade for an optimal shave.