These Quattro Razor Blades are designed for use with the Wilkinson Sword Quattro. Designed with a Rubber Guard Bar to prepare and stretch the skin to help lift the hair, the 4 blades are positioned closer together to help avoid cuts while offering an incredible close shave. Lubricating strips enhanced with Aloe Vera and Vitamin E for added glide and improved skin comfort and advanced blade technology adapts to the contours of your face for maximum skin contact.