Each Imported Zlade 4 Cartridge is equipped with 4 Titanium and Diamond coated blades made in Germany, the patented ICE (Ionic Carbon Edge) Diamond coating increases blade durability and Titanium coating enhances performance All Zlade Razors come with a Common Docking System, The Zlade 4 Razor Handle fits both Zlade 6 and Zlade 4 refill Cartridges, so you do not have to purchase a new Razor if you wish to try our other cartridges The Revolutionary Safe-Edge Technology has wire wrapped blades tightly spaced together to ensure that the blades cut only your beard and not your skin ; Zlade 4 comes with a rubberised metal handle, ergonomically designed to give you the