This box comes with 4 shaver head cartridges that are easy to replace with a simple click of a button. Each cartridge has 3 nano-tech titanium moveable blades, so they seamlessly follow every contour of your face. It gets rid of all the stubble fast for an extra smooth close shave. The triple-blade cartridges also rinse off easily to prevent clogged hair. Get added smoothness with the lubricating strip enriched with Aloe Vera and Vitamin E.