World's best shave. M3 Power cartridges with Gillette's most advanced blade edge technology. Combine with the M3 Power razor for a totally new shaving experience and Gillette's best shave ever. PowerGlide Blades: Patented blue coating produces Gillette's smoothest blade surface for incredible glide - and a level of comfort that only M3 Power can give. You can feel the difference from the first shave. Indicator Lubrastrip with Vitamin E and Aloe. M3 Power cartridges can be used with any Mach3 razor.