1) M3 power cartridges with the most advanced blade edge technology, combined with the m3 power razor for a totally new shaving experience and the best shave ever 2) New power glide blades-patented blade coating produces the 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 3) Indicator lubrastrip with vitamin e and aloe 4) M3 power cartridges can be used with any mach3 razor. For the best results, power up with the m3 power razor