The Spruce Shave Club Streak6 is our newest and most advanced razor blade. Each cartridge has 6 Blades and a trimmer blade for the closest shave yet. The blades are coated in the patented I.C.E (Ionic Carbon Edge) Diamond Coating which increases blade durability and sharpens the edge, for the most comfortable and smoothest shave. All the blades are made using state of the art machinery by experts with over 140 years of expertise in Germany. The blades have a unique L-Shaped structure to allow for easy rinsing and a more comfortable shave. Each cartridge is also equipped with an improved lubrication strip that is enriched with Aloe, Vitamin E, Shea Butter & Cocoa Butter to deliver a safer shaving experience. The Streak6 Blades are compatible with all Spruce Shave Club razor handles. So, if you tried and like our 3X or 5X Blades, now there's no need to switch handle, just upgrade your blades. Overall this razor blade, with all of its features has been designed to give you the ultimate shaving experience. Each Cartridge has 6 Blades + 1 Trimmer Edge. The patented I.C.E (Ionic Carbon Edge) Diamond Coating on each blade increases the blade durability and sharpens the edge to deliver a safer and closer shaving experience Our new Streak6 Cartridge is equipped with an enhanced lubrication strip that contains Shea Butter, Aloe Vera & Cocoa Butter to deliver a smoother and safer shave All Streak6 Blades are made in Germany by experts with over 140 Years of expertise in the industry Sharp Extra Trimmer Blade to help you easily style and shave hard to reach areas Compatible with all Spruce Shave Club shaving razor handles