GiletteLabs universal razor blades in refill pack of 9 blades. They can be used with all GilletteLabs razors, both GilletteLabs with exfoliating plate and GilletteLabs heated razors. The innovative razor refill design features 4 of Gillette's best blades.
Each blade has been designed to last approximately 20 comfortable shaves before it needs replacing.
The GilletteLabs razor that these blades fit can be found here.