The blades of women's razors Venus are specifically designed for the female body. The Venus Smooth razors are the first 3-blade razors designed for women. The razor replacement blades feature 3 blades surrounded by protective cushions that follow the curves and smooth the skin for a una quick and easy shave with results you can trust. They also feature a una strip with a blue indicator that fades to signal when shaving is no longer optimal. All Venus replacement blades are compatible with all Venus razors (except Simply Venus and Venus Pubic Hair And Skin).