The 5X Cartridges are the perfect blades to give you the closest and most comfortable shave. Each cartridge contains 5 premium, sharp stainless steel blades that are made in the USA by our partners who have over 140 years of expertise in creating blades that give the ultimate shaving experience. Every blade is carefully crafted to ensure the most burn free and comfortable shave. Each 5X cartridge also has an additional trimmer blade to allow maximum precision for styling. The Aloe Vera lubricating strip protects the skin and ensures a burn free shave while the anti clog design ensure a quick and easy rinse. Best of all, the 5X cartridges are compatible with both the Spruce Shave Club 3X, 5X & Streak6 razors, so, if you are a Spruce Shave Club user you can switch it up anytime. All together, the 5X cartridges, with their premium blade quality will give you the ultimate shaving experience.