Gillette Venus Extra Smooth Sensitive replacement blades feature 5 diamond-like coated blades with Skin Elixir technology specifically designed for sensitive skin. Each package contains 4 replacement cartridges that deliver an exceptionally close and comfortable shave. These razor cartridges are compatible with all Venus razor handles (except Venus Simply Venus). The blades are enhanced with a protective ribbon of moisture around the blades to help protect sensitive skin from irritation during shaving. For best results, replace blade when lubrication strip begins to fade or after approximately 5-7 shaves.