Philips Norelco HQ167 Cool Skin Replacement Heads for 6700 Series
These three stainless-steel heads fit into Norelco's Wet/Dry Advantage  razors only. Installing them is simple, and the package provides illustrated  instructions. Combined, the three heads provide 45 hair lifters and 45 rotating  blades to shave below the skin, whether it's wet or dry. They adjust to an  individual's facial contours for a smooth, effortless shave.--Fred Brack